Goodman Error Codes
Every Goodman error code we have catalogued, with what it means on site — 20 codes in total. In R-Pro, tap any code to get the meaning, likely causes and inspection steps, even with no signal in the plant room.
20 codes
| Code | What it means |
|---|---|
| 01 | Low refrigerant or liquid line restriction |
| 02 | System freezing or blocked coils |
| 03 | Intermittent thermostat or compressor relay fault |
| 04 | Compressor bearing, capacitor, or low voltage |
| 05 | Main power disconnect or protector fault |
| 06 | Compressor run/start winding open |
| 07 | Compressor wiring issue |
| 08 | Line voltage extremely low or high |
| 09 | Secondary voltage below 18 VAC |
| A2 | Sensor open or short circuit |
| A3 | Sensor degradation or bad sensor |
| E5 | Short in low voltage wiring |
| EE | Compressor relay welded contacts |
| b0 | Indoor blower or communication failure |
| b9 | Ductwork restriction or model mismatch |
| d0 | Control module missing shared data |
| d1 | Invalid shared data / airflow mismatch |
| d2 | Missing parameters in shared data |
| d3 | Shared data mismatch with hardware |
| d4 | Shared data rejected by PCB |
Official Goodman source / manual ↗
Look up any error code — offline — in R-Pro.
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