Blog Furnace How to Fix a furnace not blowing hot air? 8 Easy Fixes (2024) Key Takeaways Check thermostat settings, battery life, placement, and electrical connectivity. Consider upgrading to a new thermostat for improved efficiency. Maintain air filters, clear vents, inspect ductwork integrity, and ensure proper functioning of the blower fan and motor. 2024-05-06 // 12 min Read Asif Engineer-in-Training & Apprentice When winters start and the winds start getting colder, the last thing we all want is a furnace that doesn’t work like it should and keeps your home warm and comfortable. Several issues might be causing this problem, ranging from simple fixes to more serious repairs and we’re talking about them all.This detailed article will take you through common causes and solutions behind your furnace not blowing hot air, ensuring your furnace runs smoothly and keeps your home warm. Understanding Furnace Issues and How to Fix them Thermostat Challenges An essential part of any heating system, the thermostat is the central hub that tells the furnace when and how to run. If the heat isn’t coming out of your furnace, check the thermostat first. Your furnace’s efficiency may be affected by several issues that relate to the thermostat: Improper Thermostat Setting Battery Life Placement and Calibration Electrical Connectivity Upgrading Your Thermostat Some changes to the settings could be made accidentally that wouldn’t allow your furnace to produce heat. To make sure the fan is running, check that the thermostat is on “heat” and also set it to “auto”, The fan will only turn on while the heating is actively underway, due to this configuration. If set to “on,” the fan keeps going and might blow cold air when the room isn’t heating up. Batteries are required for thermostats that are not wired into your home’s electrical system. Batteries that don’t work well or are completely dead can cause problems like cold air coming in or not starting the ignition process at all. Changing the batteries once a year or as needed is a good idea. To get reliable temperature readings from your thermostat, make sure to place it in an area free of drafts, direct sunshine, and outside doors. False readings and insufficient heating activation can result from placement errors. Incorrect temperature readings can also be avoided by making sure your thermostat is calibrated correctly. Thermostat performance could be compromised by frayed or loose wires. Having a professional take a look at the problem and maybe fix it by securing all connections and replacing broken wires is the norm for this type of issue. As they age, thermostats may lose some of their efficiency. You may improve heating efficiency, reduce energy usage, and get more precise temperature control by switching to a new, smart, or programmable thermostat. Air Flow Issues For your furnace to work at its best, proper airflow is crucial. Your furnace could overheat or not blow hot air at all and start blowing cold air if the airflow is restricted: Air Filter Maintenance Clearing Vents Ductwork Integrity Blower Fan and Motor Health A dirty air filter is one of the main reasons airflow is restricted. You should check the filters once a month, particularly during the busiest times of use, and change them every one to three months, depending on factors like the number of pets in your home or the amount of dust that gets inside to stop your gas furnace from blowing cold air. Vents can become blocked by furniture or other objects from time to time, preventing the movement of warm air and leading to the heater blowing cold air. To keep air moving consistently throughout your home, make sure that all vents and registers have open routes. The effectiveness of air circulation can be drastically reduced if the ducting is compromised in any way, be it by leaks, holes, or bad connections. The efficiency of your furnace and the amount of money you spend on energy bills are both negatively impacted by this. You can fix these problems by hiring an HVAC professional to insulate your ducts or seal them. Air is circulated around your home and furnace by the blower fan. Lack of airflow could be the consequence of a malfunctioning fan or motor. You can make sure these parts work properly by inspecting them regularly. Fuel Supply Concerns You can’t rely on your furnace to heat your home without a reliable fuel source. Your furnace might not light if there are issues with the fuel supply: Gas Accessibility Gas Valve Functionality The primary gas supply valve must be turned on for the gas to flow. While doing regular maintenance or other tasks around the house, this valve could be accidentally turned off. There may be an issue with the gas pressure or the supply line if your furnace starts up but doesn’t stay running. Resolving such challenges typically involves seeking professional evaluation and intervention. Your furnace’s gas valve controls the amount of gas that can be supplied to the burner unit. In the event that this valve is not operational, the gas required to generate heat will not reach the furnace. When the pilot light stays lit but the furnace doesn’t get hot, it could be because of a faulty gas valve. Such problems usually necessitate the assistance of an expert. Ignition and Pilot Light Failures During the colder months, it can be quite uncomfortable when the furnace doesn’t start or when the pilot light goes out frequently. When the ignition and pilot light stops working, you could have the following issues: Electronic Ignition Failures Pilot Light Issues Troubleshooting Tips These days, electronic ignition methods are increasingly common in gas furnaces compared to the older pilot lights. There are two main types of these systems: hot surface ignitions and intermittent pilots. When the furnace is in operation, an intermittent pilot light will ignite the gas using a little flame; a resistance element will start the combustion process with a hot surface igniter.Furnace electrical problems, aging igniters, or faulty ignition controls can all cause problems with these systems. To catch these issues early and prevent ignition failure, routine inspections are crucial. Issues with drafts, blocked gas orifices or broken thermocouples can lead to frequent extinguishments in older furnaces that employ continuous pilot lights. If the thermocouple does not detect a flame, it will turn off the gas supply as a safety measure. It could stop the natural gas flow and prevent ignition if it mistakenly thinks the pilot light is out. These problems can be reduced by maintaining a clean pilot area and checking that the thermocouple is working properly. Begin troubleshooting ignition issues by verifying that the furnace is powered and the thermostat settings are correct. Make sure the heater is turned on and the thermostat is set correctly. Look for evident signs of wear and tear on any parts that are within reach. In some cases, resetting the furnace will solve problems with electronic ignitions. However, pros should handle persistent issues to prevent gas leaks and other dangers. Heat Exchanger and Heating Elements Critical for the furnace’s operation, the heat exchanger and heating elements require careful attention to ensure safety and efficiency: Heat Exchanger Complications Electric Furnace Heating Elements The heat exchanger allows the combustion gases to be heated and then transferred to the duct-circulated air in the home. The component may eventually shatter or wear out from repeated heating and cooling cycles, which could lead to dangers including carbon monoxide leaks.Be on the lookout for telltale signs like water gathering around the furnace as a result of condensation, odd odors (like formaldehyde), or visible rust or cracks. A qualified technician must inspect a cracked heat exchanger without delay. In electric furnaces, the air that is circulated is heated directly by the heating elements. These elements can fail or lose efficiency due to buildup or aging. Ensuring these elements are regularly checked and replaced when necessary by a professional ensures safe and efficient operation. Mechanical Wear and Tear The lifespan and efficiency of a furnace are affected by the wear and tear of its mechanical components: Blower Motor Belts and Bearings Routine Maintenance This component drives the fan that distributes air throughout the dwelling. Over time, the motor’s bearings can degrade, or the motor itself can fail, resulting in inefficient heating and increased energy usage. Indications of a failing furnace blower motor include unusual sounds, frequent on-off cycling, or ineffective air circulation. Some older HVAC System designs utilize belt-driven motors. These belts can slacken or break, disrupting air distribution. Regular inspections and replacements can avert such disruptions. Similarly, bearing wear can cause noisy operation, signaling a need for lubrication or replacement. Addressing these issues proactively through regular maintenance is crucial. This includes lubricating moving components, tightening electrical connections, and checking the condensate drain and pan for blockages. Such preventative measures not only prolong the furnace’s operational life but also enhance its safety and energy efficiency. Ductwork and Ventilation Concerns Effective ductwork is essential for your heating system to function correctly. Problems within the duct system can significantly impact your furnace’s capability to distribute warm air efficiently across your home. Leaky Ducts Insulation Deficiencies in Ducts Maintaining Ductwork Common issues such as gaps or holes in ductwork can cause heated air to escape before it reaches its destination. This not only results in inefficient heating and increased energy costs but also forces your furnace to work harder to maintain temperature, leading to potential overstrain. Using mastic sealant or metal tape to seal these leaks can greatly enhance system efficiency and reduce furnace workload. In areas like attics or basements, ducts without adequate insulation can lose a lot of heat to the surrounding environment. This heat loss can cause the air to cool down by the time it arrives in your living areas, leading to your furnace outputting air that feels warm rather than hot. Wrapping these ducts with high-quality insulation material can help maintain the air temperature as it moves through the system, ensuring effective heating. To prevent complications, it is crucial to maintain your ducts through regular professional inspections and cleanings. Ducts can accumulate dust and debris over time, obstructing airflow and reducing system efficiency. Clearing out your ducts can enhance both air quality and furnace performance. Issues with Limit Switch and Control Board The furnace’s limit switch and control board are integral for ensuring it operates safely and efficiently. Problems with these components can cause substantial heating issues, including a furnace that fails to emit hot air. Malfunctioning Limit Switch Control Board Failures This switch prevents overheating by turning the furnace off when the air in the plenum gets too hot. If this switch malfunctions, it may shut off the furnace too early or fail to trigger at all, leading to overheating and potential damage. Testing and replacing a faulty limit switch are critical for restoring furnace functionality. Serving as the furnace’s main unit, the control board directs electrical power to various furnace components. Defects in this board can disrupt the heating process, leading to symptoms like intermittent heating, failure to start, or the furnace not blowing air. Fixing these issues typically requires professional evaluation and replacement of the control board. Keep your home cozy and your water toasty with our 🔥 Limited Time Offer: New Carrier Furnace Start Hey there! Come see what Comfort Union has to offe Every little detail in our work reflects the hard Load More Follow on Instagram The Importance of Regular Maintenance If you want your furnace to last and work efficiently, you must maintain it frequently. This requires some standard procedures: Expert Inspections Once a Year: Before the heating season starts, it is preferable to have a licensed HVAC technician inspect your furnace. Problems like as airflow inefficiencies, electrical faults, mechanical part wear and tear, and intake or exhaust obstructions can be detected by these reviews.Routine Component Cleaning: To avoid a lot of typical furnace issues, it’s a good idea to clean the blower fan, the dirty flame sensor, the pilot light, and the ignition system regularly. When dust and debris build-up, it can make these parts work less efficiently or even break, which could result in costly repairs.Replacing Worn Components: To prevent unanticipated failures during peak demand times, it is recommended to replace worn or almost worn components (such as belts, bearings, and filters) during normal maintenance. What Are Customers Saying? Check out some of our latest reviews. dong Lauredo05:09 13 Oct 24they are very professional people , they took good care of the problem .I would definitely recommend them .. very cheerful and nice to deal withWilliam Hucman00:23 07 Oct 24My hot water tank failed on a Friday evening. Had spent some time on Saturday morning calling a number of service companies and Comfort Union was one of the quickest to respond and able to execute the work over the weekend. The gentlemen that showed up were very friendly, completed the work in a timely manner, left no damage and cleaned up after the work was complete. Great experience with Comfort Union!Trang Lei04:33 06 Oct 24We strongly recommend that Comfort Union attends to your residential heating, plumbing, and electrical services. Our tank water heater broke down on the weekend. On Monday, we called a few large companies, and all their estimates were on par or above the price point for the following tankless water heaters: Navien NPE-240A2, Rinnai RXP199iN, Rheem CRTGH95DVLN-3, AOSmith ATHR-199X3. During our online search, we encountered a hidden gem: Comfort Union, a small, family-oriented business with competitive and affordable pricing. They strive to adhere to a strict moral code that values integrity, fairness, and straightforwardness. We had the pleasure of meeting Asif, who was patient and took the time to address all our questions, concerns, and needs. He assessed the situation and recommended the most suitable tankless water heater option.We were not pressured to buy products – Asif was genuine and transparent. He used his expertise to guide our decision-making, always considering our needs and best interests. Ultimately, we decided on the Rinnai RX199iN SENSEI® RX Series. This model from Rinnai, a frontrunner in the industry, offers higher efficiencies, higher BTU output, better pairing with existing systems, and forward-thinking technologies. These unique features have truly enhanced our home comfort and reduced our energy bill. Asif and his team were excellent. Their workmanship, craftsmanship, and customer service are unparalleled. With their engineering backgrounds, they combine their vital knowledge to ensure our installation process is of the highest quality and standard. A special thanks to Asif, who worked tirelessly and meticulously to ensure all components were correctly installed and even took extra effort to reposition the water supply line and pipe at no additional cost. These thoughtful additions demonstrate their attention to detail and commitment to customer satisfaction, making us feel valued and important. Their commitment to our satisfaction was evident throughout the process, making us feel truly important. Thanks to their professionalism and expertise, the entire process was smooth and hassle-free. Their service was not only quick and reliable but also very affordable. This affordability, coupled with their superb customer service, a key factor that sets them apart, will make me use them for all my residential heating, plumbing, and electrical services needs. Our experience with Comfort Union has been nothing short of exceptional. We couldn't be more satisfied!Andrea Mendros16:45 04 Oct 24I recommend this with a Heart. Found this site in goggle. And they did a very good job.Abdel Aziz Farah17:54 02 Oct 24Asif and Ismail were awesome came in let me know everything I needed and it was a smooth install. Would highly recommend them to anybody!!!Ab Ca04:01 30 Sep 24I recently had the pleasure of working with Comfort Union for three major installations in my home—a new heat pump, a tankless water heater, and a furnace—and I couldn't be happier with the entire experience!Heat Pump Installation:From the first consultation, Comfort Union’s team impressed me with their knowledge and transparency. I decided to upgrade to a heat pump because I wanted to improve energy efficiency and take advantage of both heating and cooling from one system. The team carefully assessed my home’s layout and explained every step of the process, including how the heat pump would function in Calgary’s colder climate. They even took the time to break down the cost savings I could expect over time.The installation was seamless. The technicians were punctual, professional, and clearly experts in their field. They worked efficiently, ensuring that all components were correctly installed, and even took extra care to tidy up after themselves. They walked me through the setup, explaining how to use the system, and answered all of my questions patiently. Now, I enjoy year-round comfort with a system that’s quiet, effective, and eco-friendly!Tankless Water Heater Installation:I also had Comfort Union install a tankless water heater (Rinnai RXP199), and it’s been a game-changer for my household. No more waiting for the water to heat up or running out of hot water during long showers—this tankless system delivers endless hot water on demand!Their installation team was fantastic. They emphasized the importance of proper installation for efficiency and to protect the warranty, which gave me peace of mind knowing I was in good hands. I appreciated that they took the time to explain the maintenance needs to ensure the system stays in top shape for years to come. Plus, they added smart touches like installing a drier filter for extra protection against Calgary’s colder months.Furnace Installation:Lastly, I had Comfort Union replace my old furnace, and wow—what a difference it’s made! They recommended a high-efficiency model based on my home’s size and heating needs, and it has drastically improved my energy bills. The new furnace is powerful yet super quiet, and I can already feel the consistent warmth throughout my house.I can’t stress enough how smooth this installation went. The team was respectful of my space, even laying down mats to protect my floors. They installed a new programmable thermostat and made sure everything was running perfectly before leaving. They also included a comprehensive warranty and provided advice on how to keep the system running efficiently for years.Overall Experience:What I love most about Comfort Union is how they combine their technical expertise with a personal touch. From the friendly office staff to the knowledgeable technicians, everyone I interacted with was professional, courteous, and genuinely cared about my comfort. I also appreciate that they offer full coverage with their installations, including maintenance plans, which makes me feel even more confident in my investment.If you’re looking for a reliable, family-run HVAC company that truly puts customers first, I highly recommend Comfort Union. Their workmanship, attention to detail, and top-notch service exceeded all my expectations. Whether you need a new heat pump, tankless water heater, or furnace, you won’t be disappointed!Pramila Yesudas03:26 30 Sep 24Asıf and team replaced our hot water tank very quickly and efficiently. Asif was very professional and communicated well with us. Asıf is knowledgeable, I would definitely recommend comfort union heating and plumbing company to others. Thank you Asıf for your quick and responsible work.Rych 182101:19 20 Sep 24Asif and his team installed a heat pump in my home. They did an excellent job. Quality of work was very good. They were friendly and helpful; happy to explain what they were doing and answer any questions. Very pleased with the service. Highly recommended.Looking forward to the annual maintenance service from you, guys. Thank you.Omolade Ajetunmobi05:13 19 Sep 24Both Moe and Ben were really good and they completed the heat pump install in a timely manner. Very professional and kept our place clean afterwards.Pablo G01:15 18 Sep 24Tankless Water Heater: Very happy and impressed with how quickly Asif came out to assess the problem, with his knowledge and the response time to quote and install a replacement unit. No pressure sales and upfront pricing with no surprises. I had a quote from another ‘Rinnai Approved’ company who flip-flopped on the work scope, upgrades and advised on new venting (at great cost) that was simply not needed. The tech (Mo) did a good job removing and installing the new unit and so far the unit has been working great.Glen R17:46 07 Sep 24I recently had the pleasure of working with Comfort Union Heating and Plumbing, and I can’t say enough about the exceptional service I received. Led by Asif, the team was incredibly meticulous in their work, ensuring that every detail was attended to.Their attention to detail and commitment to quality work were evident from start to finish. If you’re looking for reliable and skilled service in heating and plumbing, I highly recommend Comfort Union Heating and Plumbing. Thank you, Asif, Muhammad and the team, for a great experience!Chris Ellett13:28 06 Sep 24I had a great experience with comfort union. Even over the long weekend they answered the phone, and were there the next day to replace my hot water tank. Moe called in the morning to give me an ETA and then a text when he was actually on the way. He was thorough, friendly, knowledgeable and would use this family run business againBerta Sipos02:20 05 Sep 24Amazing service Asif, Mo and Daryl. Thank you Comfort Union! On Friday evening our hot water tank stoped working. We e- mailed Comfort Union in 30 minutes they called us back. Very professional and friendly staff. Friday evening we had our quote. Very detailed and clear. On Saturday morning they called to see if we have any questions. The price was very reasonable. We booked the service and that afternoon we had a brand new hot water tank installed. We were very pleased and we highly recommend Comfort Union. These three young man were just amazing! Thank you again.Samiur20:24 04 Sep 24Professional, competitive and immediate service. Installed a new heat pump from them and it was good experience. Highly recommend.Charles Kabano19:12 01 Sep 24Comfort Union just finished up HVAC work for the secondary suite basement for us in Airdrie, and I gotta say, these guys did a fantastic job. They installed a new Carrier furnace, moved our old Trane to a different spot, and hooked us up with a Lennox AC. Everything was smooth, and they really knew what they were doing.I love that they’re a family business—and really care about their work and their customers. The crew was super friendly and easy to talk to, and they made sure to explain everything along the way. The new furnace and AC are working great, and moving the old unit seemed like no big deal for them.Overall, just a great experience. If you need any HVAC work done in Airdrie, these are the people to call. Can’t recommend Comfort Union enough!Kyle21:57 29 Aug 24Vic DePaz01:09 28 Aug 24Comfort Union team was awesome to deal with and loved they are Calgary family run business. I will greatly recommend them. Great work.Kathleen Vinluan01:26 24 Aug 24Quick and Reliable. Who should you call if your furnace blows cold air instead of hot? When your furnace unexpectedly starts blowing cold air instead of hot, reaching out to a reputable HVAC specialist like Comfort Union is a prudent choice. Renowned for their proficiency in managing heating and cooling systems, Comfort Union provides prompt and expert services to address and resolve your furnace issues like a furnace blowing cold air effectively.Additionally, several issues could be potentially dangerous to your home and health – like a gas leak or carbon monoxide poisoning. This is why, a professional must look at your broken furnace only.Our team, equipped with advanced diagnostic tools and extensive knowledge, ensures your heating system is swiftly returned to optimal functioning and there’s no more cold air blowing in the home. Opting for Comfort Union means securing detailed inspections and comprehensive services from seasoned technicians committed to ensuring your home remains cozy and warm. Looking For Instant Pricing? No Hidden Fees! Same Day & Next Day Install Certified, Licensed & Insured Premium and Affordable Brands Get A Quote Share this: In this Article Share this: Related Posts DIY Furnace Maintenance: Top Tasks & How to Do Them Well Locating the arrow: Which way does air filter go in furnace? Heat Pump Furnace Combo: What is It and How Can it Benefit Your Home? Rheem Furnace Troubleshooting Guide: Understanding Issues & Decoding Error Codes A detailed guide on Tempstar furnace troubleshooting LEARN MORE ABOUT OUR CONTRIBUTOR Asif Engineer-in-Training & Apprentice Asif is the driving force behind Comfort Union. Growing up, he learned the ropes of engineering and trades from his dad, sparking his entrepreneurial spirit. With a master's in Software Engineering from the University of Calgary and degrees in both Commerce (Accounting) and Chemical Engineering, Asif is a rare mix… Related Posts DIY Furnace Maintenance: Top Tasks & How to Do Them Well Getting your furnace ready for the cold is essential as the heating season draws near. Whether you have an electric or gas furnace, regular maintenance will help you avoid expensive repairs and keep your house warm and safe. In this article, we will guide you through the fundamentals of DIY furnace maintenance along with basic hand tools and knowledge that our experts have carefully curated. By Asif in Furnace on May 15, 2024 Locating the arrow: Which way does air filter go in furnace? Although it may appear to be a simple task, ensuring that the air filter is installed in the right furnace filter direction is crucial for keeping the airflow effective and improving the air quality inside. As HVAC professionals, we've witnessed firsthand how improper installation can drastically reduce a system's performance. By Asif in Furnace on May 15, 2024 Heat Pump Furnace Combo: What is It and How Can it Benefit Your Home? Heat pumps and gas furnaces combined into dual-fuel heating systems have been becoming more prevalent throughout Canada in recent years. Homes looking for solutions that strike a mix of comfort, energy economy, and sustainability may find these hybrid systems appealing. By Asif in Furnace on May 19, 2024 Rheem Furnace Troubleshooting Guide: Understanding Issues & Decoding Error Codes When the colder seasons are approaching, it is necessary to make sure that your home heating system is in the best possible condition. Wintertime furnace breakdowns are far more than just an inconvenience; they pose serious health and safety risks. By Asif in Furnace on May 17, 2024 A detailed guide on Tempstar furnace troubleshooting Tempstar furnaces are widely known for their highly efficient and reliable HVAC systems. With their Energy Star Certification and strong warranty, many people go for their furnaces. However, if you're facing issues with your Tempstar furnace, it may be time for a repair or maintenance call. By Asif in Furnace on May 17, 2024 Table of content In the Article
When winters start and the winds start getting colder, the last thing we all want is a furnace that doesn’t work like it should and keeps your home warm and comfortable. Several issues might be causing this problem, ranging from simple fixes to more serious repairs and we’re talking about them all.This detailed article will take you through common causes and solutions behind your furnace not blowing hot air, ensuring your furnace runs smoothly and keeps your home warm. Understanding Furnace Issues and How to Fix them Thermostat Challenges An essential part of any heating system, the thermostat is the central hub that tells the furnace when and how to run. If the heat isn’t coming out of your furnace, check the thermostat first. Your furnace’s efficiency may be affected by several issues that relate to the thermostat: Improper Thermostat Setting Battery Life Placement and Calibration Electrical Connectivity Upgrading Your Thermostat Some changes to the settings could be made accidentally that wouldn’t allow your furnace to produce heat. To make sure the fan is running, check that the thermostat is on “heat” and also set it to “auto”, The fan will only turn on while the heating is actively underway, due to this configuration. If set to “on,” the fan keeps going and might blow cold air when the room isn’t heating up. Batteries are required for thermostats that are not wired into your home’s electrical system. Batteries that don’t work well or are completely dead can cause problems like cold air coming in or not starting the ignition process at all. Changing the batteries once a year or as needed is a good idea. To get reliable temperature readings from your thermostat, make sure to place it in an area free of drafts, direct sunshine, and outside doors. False readings and insufficient heating activation can result from placement errors. Incorrect temperature readings can also be avoided by making sure your thermostat is calibrated correctly. Thermostat performance could be compromised by frayed or loose wires. Having a professional take a look at the problem and maybe fix it by securing all connections and replacing broken wires is the norm for this type of issue. As they age, thermostats may lose some of their efficiency. You may improve heating efficiency, reduce energy usage, and get more precise temperature control by switching to a new, smart, or programmable thermostat. Air Flow Issues For your furnace to work at its best, proper airflow is crucial. Your furnace could overheat or not blow hot air at all and start blowing cold air if the airflow is restricted: Air Filter Maintenance Clearing Vents Ductwork Integrity Blower Fan and Motor Health A dirty air filter is one of the main reasons airflow is restricted. You should check the filters once a month, particularly during the busiest times of use, and change them every one to three months, depending on factors like the number of pets in your home or the amount of dust that gets inside to stop your gas furnace from blowing cold air. Vents can become blocked by furniture or other objects from time to time, preventing the movement of warm air and leading to the heater blowing cold air. To keep air moving consistently throughout your home, make sure that all vents and registers have open routes. The effectiveness of air circulation can be drastically reduced if the ducting is compromised in any way, be it by leaks, holes, or bad connections. The efficiency of your furnace and the amount of money you spend on energy bills are both negatively impacted by this. You can fix these problems by hiring an HVAC professional to insulate your ducts or seal them. Air is circulated around your home and furnace by the blower fan. Lack of airflow could be the consequence of a malfunctioning fan or motor. You can make sure these parts work properly by inspecting them regularly. Fuel Supply Concerns You can’t rely on your furnace to heat your home without a reliable fuel source. Your furnace might not light if there are issues with the fuel supply: Gas Accessibility Gas Valve Functionality The primary gas supply valve must be turned on for the gas to flow. While doing regular maintenance or other tasks around the house, this valve could be accidentally turned off. There may be an issue with the gas pressure or the supply line if your furnace starts up but doesn’t stay running. Resolving such challenges typically involves seeking professional evaluation and intervention. Your furnace’s gas valve controls the amount of gas that can be supplied to the burner unit. In the event that this valve is not operational, the gas required to generate heat will not reach the furnace. When the pilot light stays lit but the furnace doesn’t get hot, it could be because of a faulty gas valve. Such problems usually necessitate the assistance of an expert. Ignition and Pilot Light Failures During the colder months, it can be quite uncomfortable when the furnace doesn’t start or when the pilot light goes out frequently. When the ignition and pilot light stops working, you could have the following issues: Electronic Ignition Failures Pilot Light Issues Troubleshooting Tips These days, electronic ignition methods are increasingly common in gas furnaces compared to the older pilot lights. There are two main types of these systems: hot surface ignitions and intermittent pilots. When the furnace is in operation, an intermittent pilot light will ignite the gas using a little flame; a resistance element will start the combustion process with a hot surface igniter.Furnace electrical problems, aging igniters, or faulty ignition controls can all cause problems with these systems. To catch these issues early and prevent ignition failure, routine inspections are crucial. Issues with drafts, blocked gas orifices or broken thermocouples can lead to frequent extinguishments in older furnaces that employ continuous pilot lights. If the thermocouple does not detect a flame, it will turn off the gas supply as a safety measure. It could stop the natural gas flow and prevent ignition if it mistakenly thinks the pilot light is out. These problems can be reduced by maintaining a clean pilot area and checking that the thermocouple is working properly. Begin troubleshooting ignition issues by verifying that the furnace is powered and the thermostat settings are correct. Make sure the heater is turned on and the thermostat is set correctly. Look for evident signs of wear and tear on any parts that are within reach. In some cases, resetting the furnace will solve problems with electronic ignitions. However, pros should handle persistent issues to prevent gas leaks and other dangers. Heat Exchanger and Heating Elements Critical for the furnace’s operation, the heat exchanger and heating elements require careful attention to ensure safety and efficiency: Heat Exchanger Complications Electric Furnace Heating Elements The heat exchanger allows the combustion gases to be heated and then transferred to the duct-circulated air in the home. The component may eventually shatter or wear out from repeated heating and cooling cycles, which could lead to dangers including carbon monoxide leaks.Be on the lookout for telltale signs like water gathering around the furnace as a result of condensation, odd odors (like formaldehyde), or visible rust or cracks. A qualified technician must inspect a cracked heat exchanger without delay. In electric furnaces, the air that is circulated is heated directly by the heating elements. These elements can fail or lose efficiency due to buildup or aging. Ensuring these elements are regularly checked and replaced when necessary by a professional ensures safe and efficient operation. Mechanical Wear and Tear The lifespan and efficiency of a furnace are affected by the wear and tear of its mechanical components: Blower Motor Belts and Bearings Routine Maintenance This component drives the fan that distributes air throughout the dwelling. Over time, the motor’s bearings can degrade, or the motor itself can fail, resulting in inefficient heating and increased energy usage. Indications of a failing furnace blower motor include unusual sounds, frequent on-off cycling, or ineffective air circulation. Some older HVAC System designs utilize belt-driven motors. These belts can slacken or break, disrupting air distribution. Regular inspections and replacements can avert such disruptions. Similarly, bearing wear can cause noisy operation, signaling a need for lubrication or replacement. Addressing these issues proactively through regular maintenance is crucial. This includes lubricating moving components, tightening electrical connections, and checking the condensate drain and pan for blockages. Such preventative measures not only prolong the furnace’s operational life but also enhance its safety and energy efficiency. Ductwork and Ventilation Concerns Effective ductwork is essential for your heating system to function correctly. Problems within the duct system can significantly impact your furnace’s capability to distribute warm air efficiently across your home. Leaky Ducts Insulation Deficiencies in Ducts Maintaining Ductwork Common issues such as gaps or holes in ductwork can cause heated air to escape before it reaches its destination. This not only results in inefficient heating and increased energy costs but also forces your furnace to work harder to maintain temperature, leading to potential overstrain. Using mastic sealant or metal tape to seal these leaks can greatly enhance system efficiency and reduce furnace workload. In areas like attics or basements, ducts without adequate insulation can lose a lot of heat to the surrounding environment. This heat loss can cause the air to cool down by the time it arrives in your living areas, leading to your furnace outputting air that feels warm rather than hot. Wrapping these ducts with high-quality insulation material can help maintain the air temperature as it moves through the system, ensuring effective heating. To prevent complications, it is crucial to maintain your ducts through regular professional inspections and cleanings. Ducts can accumulate dust and debris over time, obstructing airflow and reducing system efficiency. Clearing out your ducts can enhance both air quality and furnace performance. Issues with Limit Switch and Control Board The furnace’s limit switch and control board are integral for ensuring it operates safely and efficiently. Problems with these components can cause substantial heating issues, including a furnace that fails to emit hot air. Malfunctioning Limit Switch Control Board Failures This switch prevents overheating by turning the furnace off when the air in the plenum gets too hot. If this switch malfunctions, it may shut off the furnace too early or fail to trigger at all, leading to overheating and potential damage. Testing and replacing a faulty limit switch are critical for restoring furnace functionality. Serving as the furnace’s main unit, the control board directs electrical power to various furnace components. Defects in this board can disrupt the heating process, leading to symptoms like intermittent heating, failure to start, or the furnace not blowing air. Fixing these issues typically requires professional evaluation and replacement of the control board. Keep your home cozy and your water toasty with our 🔥 Limited Time Offer: New Carrier Furnace Start Hey there! Come see what Comfort Union has to offe Every little detail in our work reflects the hard Load More Follow on Instagram The Importance of Regular Maintenance If you want your furnace to last and work efficiently, you must maintain it frequently. This requires some standard procedures: Expert Inspections Once a Year: Before the heating season starts, it is preferable to have a licensed HVAC technician inspect your furnace. Problems like as airflow inefficiencies, electrical faults, mechanical part wear and tear, and intake or exhaust obstructions can be detected by these reviews.Routine Component Cleaning: To avoid a lot of typical furnace issues, it’s a good idea to clean the blower fan, the dirty flame sensor, the pilot light, and the ignition system regularly. When dust and debris build-up, it can make these parts work less efficiently or even break, which could result in costly repairs.Replacing Worn Components: To prevent unanticipated failures during peak demand times, it is recommended to replace worn or almost worn components (such as belts, bearings, and filters) during normal maintenance. What Are Customers Saying? Check out some of our latest reviews. dong Lauredo05:09 13 Oct 24they are very professional people , they took good care of the problem .I would definitely recommend them .. very cheerful and nice to deal withWilliam Hucman00:23 07 Oct 24My hot water tank failed on a Friday evening. Had spent some time on Saturday morning calling a number of service companies and Comfort Union was one of the quickest to respond and able to execute the work over the weekend. The gentlemen that showed up were very friendly, completed the work in a timely manner, left no damage and cleaned up after the work was complete. Great experience with Comfort Union!Trang Lei04:33 06 Oct 24We strongly recommend that Comfort Union attends to your residential heating, plumbing, and electrical services. Our tank water heater broke down on the weekend. On Monday, we called a few large companies, and all their estimates were on par or above the price point for the following tankless water heaters: Navien NPE-240A2, Rinnai RXP199iN, Rheem CRTGH95DVLN-3, AOSmith ATHR-199X3. During our online search, we encountered a hidden gem: Comfort Union, a small, family-oriented business with competitive and affordable pricing. They strive to adhere to a strict moral code that values integrity, fairness, and straightforwardness. We had the pleasure of meeting Asif, who was patient and took the time to address all our questions, concerns, and needs. He assessed the situation and recommended the most suitable tankless water heater option.We were not pressured to buy products – Asif was genuine and transparent. He used his expertise to guide our decision-making, always considering our needs and best interests. Ultimately, we decided on the Rinnai RX199iN SENSEI® RX Series. This model from Rinnai, a frontrunner in the industry, offers higher efficiencies, higher BTU output, better pairing with existing systems, and forward-thinking technologies. These unique features have truly enhanced our home comfort and reduced our energy bill. Asif and his team were excellent. Their workmanship, craftsmanship, and customer service are unparalleled. With their engineering backgrounds, they combine their vital knowledge to ensure our installation process is of the highest quality and standard. A special thanks to Asif, who worked tirelessly and meticulously to ensure all components were correctly installed and even took extra effort to reposition the water supply line and pipe at no additional cost. These thoughtful additions demonstrate their attention to detail and commitment to customer satisfaction, making us feel valued and important. Their commitment to our satisfaction was evident throughout the process, making us feel truly important. Thanks to their professionalism and expertise, the entire process was smooth and hassle-free. Their service was not only quick and reliable but also very affordable. This affordability, coupled with their superb customer service, a key factor that sets them apart, will make me use them for all my residential heating, plumbing, and electrical services needs. Our experience with Comfort Union has been nothing short of exceptional. We couldn't be more satisfied!Andrea Mendros16:45 04 Oct 24I recommend this with a Heart. Found this site in goggle. And they did a very good job.Abdel Aziz Farah17:54 02 Oct 24Asif and Ismail were awesome came in let me know everything I needed and it was a smooth install. Would highly recommend them to anybody!!!Ab Ca04:01 30 Sep 24I recently had the pleasure of working with Comfort Union for three major installations in my home—a new heat pump, a tankless water heater, and a furnace—and I couldn't be happier with the entire experience!Heat Pump Installation:From the first consultation, Comfort Union’s team impressed me with their knowledge and transparency. I decided to upgrade to a heat pump because I wanted to improve energy efficiency and take advantage of both heating and cooling from one system. The team carefully assessed my home’s layout and explained every step of the process, including how the heat pump would function in Calgary’s colder climate. They even took the time to break down the cost savings I could expect over time.The installation was seamless. The technicians were punctual, professional, and clearly experts in their field. They worked efficiently, ensuring that all components were correctly installed, and even took extra care to tidy up after themselves. They walked me through the setup, explaining how to use the system, and answered all of my questions patiently. Now, I enjoy year-round comfort with a system that’s quiet, effective, and eco-friendly!Tankless Water Heater Installation:I also had Comfort Union install a tankless water heater (Rinnai RXP199), and it’s been a game-changer for my household. No more waiting for the water to heat up or running out of hot water during long showers—this tankless system delivers endless hot water on demand!Their installation team was fantastic. They emphasized the importance of proper installation for efficiency and to protect the warranty, which gave me peace of mind knowing I was in good hands. I appreciated that they took the time to explain the maintenance needs to ensure the system stays in top shape for years to come. Plus, they added smart touches like installing a drier filter for extra protection against Calgary’s colder months.Furnace Installation:Lastly, I had Comfort Union replace my old furnace, and wow—what a difference it’s made! They recommended a high-efficiency model based on my home’s size and heating needs, and it has drastically improved my energy bills. The new furnace is powerful yet super quiet, and I can already feel the consistent warmth throughout my house.I can’t stress enough how smooth this installation went. The team was respectful of my space, even laying down mats to protect my floors. They installed a new programmable thermostat and made sure everything was running perfectly before leaving. They also included a comprehensive warranty and provided advice on how to keep the system running efficiently for years.Overall Experience:What I love most about Comfort Union is how they combine their technical expertise with a personal touch. From the friendly office staff to the knowledgeable technicians, everyone I interacted with was professional, courteous, and genuinely cared about my comfort. I also appreciate that they offer full coverage with their installations, including maintenance plans, which makes me feel even more confident in my investment.If you’re looking for a reliable, family-run HVAC company that truly puts customers first, I highly recommend Comfort Union. Their workmanship, attention to detail, and top-notch service exceeded all my expectations. Whether you need a new heat pump, tankless water heater, or furnace, you won’t be disappointed!Pramila Yesudas03:26 30 Sep 24Asıf and team replaced our hot water tank very quickly and efficiently. Asif was very professional and communicated well with us. Asıf is knowledgeable, I would definitely recommend comfort union heating and plumbing company to others. Thank you Asıf for your quick and responsible work.Rych 182101:19 20 Sep 24Asif and his team installed a heat pump in my home. They did an excellent job. Quality of work was very good. They were friendly and helpful; happy to explain what they were doing and answer any questions. Very pleased with the service. Highly recommended.Looking forward to the annual maintenance service from you, guys. Thank you.Omolade Ajetunmobi05:13 19 Sep 24Both Moe and Ben were really good and they completed the heat pump install in a timely manner. Very professional and kept our place clean afterwards.Pablo G01:15 18 Sep 24Tankless Water Heater: Very happy and impressed with how quickly Asif came out to assess the problem, with his knowledge and the response time to quote and install a replacement unit. No pressure sales and upfront pricing with no surprises. I had a quote from another ‘Rinnai Approved’ company who flip-flopped on the work scope, upgrades and advised on new venting (at great cost) that was simply not needed. The tech (Mo) did a good job removing and installing the new unit and so far the unit has been working great.Glen R17:46 07 Sep 24I recently had the pleasure of working with Comfort Union Heating and Plumbing, and I can’t say enough about the exceptional service I received. Led by Asif, the team was incredibly meticulous in their work, ensuring that every detail was attended to.Their attention to detail and commitment to quality work were evident from start to finish. If you’re looking for reliable and skilled service in heating and plumbing, I highly recommend Comfort Union Heating and Plumbing. Thank you, Asif, Muhammad and the team, for a great experience!Chris Ellett13:28 06 Sep 24I had a great experience with comfort union. Even over the long weekend they answered the phone, and were there the next day to replace my hot water tank. Moe called in the morning to give me an ETA and then a text when he was actually on the way. He was thorough, friendly, knowledgeable and would use this family run business againBerta Sipos02:20 05 Sep 24Amazing service Asif, Mo and Daryl. Thank you Comfort Union! On Friday evening our hot water tank stoped working. We e- mailed Comfort Union in 30 minutes they called us back. Very professional and friendly staff. Friday evening we had our quote. Very detailed and clear. On Saturday morning they called to see if we have any questions. The price was very reasonable. We booked the service and that afternoon we had a brand new hot water tank installed. We were very pleased and we highly recommend Comfort Union. These three young man were just amazing! Thank you again.Samiur20:24 04 Sep 24Professional, competitive and immediate service. Installed a new heat pump from them and it was good experience. Highly recommend.Charles Kabano19:12 01 Sep 24Comfort Union just finished up HVAC work for the secondary suite basement for us in Airdrie, and I gotta say, these guys did a fantastic job. They installed a new Carrier furnace, moved our old Trane to a different spot, and hooked us up with a Lennox AC. Everything was smooth, and they really knew what they were doing.I love that they’re a family business—and really care about their work and their customers. The crew was super friendly and easy to talk to, and they made sure to explain everything along the way. The new furnace and AC are working great, and moving the old unit seemed like no big deal for them.Overall, just a great experience. If you need any HVAC work done in Airdrie, these are the people to call. Can’t recommend Comfort Union enough!Kyle21:57 29 Aug 24Vic DePaz01:09 28 Aug 24Comfort Union team was awesome to deal with and loved they are Calgary family run business. I will greatly recommend them. Great work.Kathleen Vinluan01:26 24 Aug 24Quick and Reliable. Who should you call if your furnace blows cold air instead of hot? When your furnace unexpectedly starts blowing cold air instead of hot, reaching out to a reputable HVAC specialist like Comfort Union is a prudent choice. Renowned for their proficiency in managing heating and cooling systems, Comfort Union provides prompt and expert services to address and resolve your furnace issues like a furnace blowing cold air effectively.Additionally, several issues could be potentially dangerous to your home and health – like a gas leak or carbon monoxide poisoning. This is why, a professional must look at your broken furnace only.Our team, equipped with advanced diagnostic tools and extensive knowledge, ensures your heating system is swiftly returned to optimal functioning and there’s no more cold air blowing in the home. Opting for Comfort Union means securing detailed inspections and comprehensive services from seasoned technicians committed to ensuring your home remains cozy and warm. Looking For Instant Pricing? No Hidden Fees! Same Day & Next Day Install Certified, Licensed & Insured Premium and Affordable Brands Get A Quote Share this:
