Search Error Codes

The Daikin A1 error code signals that the indoor unit's printed circuit board (PCB) is malfunctioning. This PCB is the b...

The Daikin E1 error code indicates a defect in the outdoor PCB (Printed Circuit Board). This board controls various func...

The Rheem A091 error code indicates a communication issue between the main PCB (Printed Circuit Board) and other system ...

The A093 error code on your Rheem HVAC system indicates a problem with the data being read from the printed circuit boar...

The A099 error on Rheem systems indicates a failure of the main control board (PCB). This board controls all system func...

The C5 error code on your Gree HVAC system indicates a malfunction with the jumpers or printed circuit board (PCB). This...

The E615 error on your Navien boiler indicates a PCB (Printed Circuit Board) communication failure. This means that the ...

The E782 error on your Navien boiler indicates a fault with the internal Printed Circuit Board (PCB). This is the brain ...

The error code 70 on your Rinnai water heater indicates a failure of the Printed Circuit Board (PCB), which is a critica...

The 'PCB Replace Required' error on your Rinnai water heater means that the main control board (PCB) has detected an iss...

The Takagi 710 error code indicates a fault within the Printed Circuit Board (PCB), which is the main control board of y...