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.
Common Goodman codes
- 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
| 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 ↗
Frequently asked
What does Goodman error code 01 mean?
Goodman error code 01 means: Low refrigerant or liquid line restriction. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Goodman error code 02 mean?
Goodman error code 02 means: System freezing or blocked coils. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Goodman error code 03 mean?
Goodman error code 03 means: Intermittent thermostat or compressor relay fault. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Goodman error code 04 mean?
Goodman error code 04 means: Compressor bearing, capacitor, or low voltage. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Goodman error code 05 mean?
Goodman error code 05 means: Main power disconnect or protector fault. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Goodman error code 06 mean?
Goodman error code 06 means: Compressor run/start winding open. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Goodman error code 07 mean?
Goodman error code 07 means: Compressor wiring issue. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Goodman error code 08 mean?
Goodman error code 08 means: Line voltage extremely low or high. In R-Pro you also get the likely causes and the inspection steps — offline.
Look up any error code — offline — in R-Pro.
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