If you are unable to diagnose and solve the problem with the information below, contact an experienced and certified HVAC technician for certain complex problems. This chapter summarizes the most common problems you could encounter with your Rheem furnace. Rheem Furnace Gas Valve Error Codes Codes High Pressure Switch Closed – Inducer OFF Low Pressure Switch Open – Inducer on Low Low Pressure Switch Open – Inducer on High Rheem Furnace Pressure Switch Error Codes Codes Rheem Furnace Limit Control Error Codes Codes Rheem Furnace Flame Sense Signal Error Codes Codes Gas heat – No “V” Signal (Legacy Mode OnlyĬalibration – No “V Signal (Legacy Mode Onlyĭehumidification active (Legacy Mode Only) Rheem Furnace Normal Operation Codes Code Here, we will list the meaning of specific Rheem furnace error codes. I will try and give you the best possible diagnosis and a description of what you can do to fix the error. There have been many times I have seen furnace error present itself, but the cause of this error is not necessarily what it shows. Rheem and York give you a simple error code that you can use for diagnostics of your furnace problems. They don’t use flashing LED light sequences to indicate errors, like other brands.

Rheem furnaces are designed with an advanced 7-segment diagnostic display. I wanted to list the Rheem furnace error codes with some guidance on what the possible underlying issues could be to make these errors appear.

This Rheem error codes guide is made for the person who might want to try and fix their furnace.

Rheem furnace serial number reader