fbpx
google icon color
Rheem Furnace Troubleshooting

Key Takeaways

  • When preparing for colder weather, ensuring your Rheem furnace is functioning properly is crucial for safety and comfort. This guide provides solutions to common issues and understanding of error codes, helping you troubleshoot problems effectively or know when to seek professional help.
  • Choosing a reputable HVAC company like Comfort Union ensures reliable service and strict safety standards for your furnace. Their certified technicians can efficiently address routine maintenance or emergency repairs, providing peace of mind for you and your family.

Table of Content

Rheem Furnace Troubleshooting

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.

If you own a Rheem furnace and are having problems, this article should help you figure out what’s wrong and how to fix it, or at least know when to call a pro.

Troubleshooting the Most Common Issues in Rheem Furnaces

Comprehensive Error Code Guide for Rheem Furnaces

It is important to know the error codes for your Rheem furnace to fix problems quickly. However, keep in mind that these codes are different from those for your Rheem water heater or air conditioner. Here are a few of the most common Rheem furnace error codes, what they mean, and how to fix them:

Error Code 0: Standby Mode

  • Explanation: The furnace remains in a ready state, awaiting a command to activate heating.

  • Action Needed: No intervention is necessary unless the system fails to activate upon demand.

Error Code F: Continuous Fan Operation

  • Explanation: The fan operates continuously without the heating cycle.

  • Action Needed: Adjust the thermostat settings from “on” to “auto” to correct this.

Error Code H: Active Heating

  • Explanation: The furnace is in the process of heating the home.

  • Action Needed: No action is required unless the furnace is operating when it should not be.

Error Code 10: One Hour Lockout

  • Explanation: After several unsuccessful ignition attempts, the furnace will lock out for one hour.

  • Action Needed: Inspect and troubleshoot components like the gas supply, igniter, and flame sensor. Reset the system to clear the lockout.

Error Code 11: Ignition Failure

  • Explanation: The system attempted to ignite but was unsuccessful.

  • Action Needed: Ensure proper gas flow, that the igniter is operational, and that the gas valve is functioning correctly.

Error Code 12: Weak Flame Detection

  • Explanation: The flame sensor detected a flame, but it is weaker than normal.

  • Action Needed: Clean or replace the flame sensor and ensure the burner is clear of debris.

Error Code 13: Flame Extinguished

  • Explanation: Initially detected, the flame was unexpectedly lost.

  • Action Needed: Verify operations of the gas supply, flame sensor, and draft inducer.

Error Code 14: Flame Detected Unexpectedly

  • Explanation: A flame has been detected inappropriately.

  • Action Needed: This could indicate a serious issue like a faulty gas valve or control board, requiring immediate attention.

Error Code 20: Twinning Fault

  • Explanation: Issues detected with the setup or wiring in systems configured in twin setups.

  • Action Needed: Verify the correct settings and wiring for twin configurations, ensuring compatibility of control boards.

Error Code 22: High Limit Switch Activation

  • Explanation: This switch activates due to excessive temperatures.

  • Action Needed: Check for airflow restrictions like dirty filters or blocked vents and consider replacing the switch if it is defective.

Error Code 26: Incorrect Electrical Wiring

  • Explanation: The electrical wiring setup is reversed, posing a safety risk.

  • Action Needed: Power down the system immediately and correct the wiring arrangement.

Error Code 33: Roll-Out Switch Tripped

  • Explanation: Indicates potential flame rollout or excessive heat outside the combustion area.

  • Action Needed: Inspect for blockages, ensure proper operation of the burner, and reset or replace the switch.

Error Codes 55 & 57: Issues with Pressure Switch

  • Explanation: The switch does not close (55) or open (57) as expected.

  • Action Needed: Examine the venting and intake, check the inducer motor, and inspect the pressure switch tubing.

Error Codes 58 & 59: Excess Water Detection

  • Explanation: Sensors detect too much water, likely from condensation.

  • Action Needed: Ensure the condensate drain is clear and that the drain pan is properly draining without overflow or hot water leak.

Error Code 61: Blower Malfunction

  • Explanation: The blower motor has encountered a fault and cannot operate.

  • Action Needed: Check for any damage or failure in the blower motor and capacitor, and verify electrical connections to ensure proper air supply.

Error Code 93: General Control Fault

  • Explanation: A general fault within the control board.

  • Action Needed: Typically, this requires a replacement of the control board by a certified professional.

Choosing the Right HVAC Company for Rheem Furnace Troubleshooting: Comfort Union

When looking for a reliable and skilled HVAC technician, companies like Comfort Union should be at the top of your list. The certified technicians who work for our company are what set us apart and ensure that customers always get high-quality service.

Comfort Union is well-known for efficiently and quickly responding to both routine and emergency service calls while maintaining strict safety standards for your HVAC systems and their parts like gas piping, evaporator coil ductwork, and more. If you want your heating system problems fixed in a way that won’t put you, your family, or your house in danger, hiring a reputable service is your best bet.

Wish to know more about our services for your furnaces and water heaters? Contact us today and forget any trouble that comes your way!

Other Furnace Troubleshooting We Offer

Call The Experts Today.

asif author

Help is here.

Whenever and however you need it.

Name(Required)
This field is for validation purposes and should be left unchanged.