HVACopediaGoodman air handler error codes
20 codes with causes and test steps.
| Code | Meaning | Severity |
|---|---|---|
| E0F | Condensate switch open - high water in drain pan | Medium |
| E05 | Air handler fuse open | High |
| Eb0 | Blower motor not running with a demand present | High |
| Eb1 | Control lost communication with the blower motor | High |
| Eb2 | Motor horsepower does not match shared data | High |
| Eb3 | Blower limiting on power, temperature or speed | Medium |
| Eb4 | Blower motor lost rotor control or high current | High |
| Eb5 | Blower motor failed to start 10 times | High |
| Eb6 | Blower shut down for voltage or power module temperature | High |
| Eb7 | Blower motor missing shared data / failed to start 40 times | High |
| Eb9 | Airflow lower than demanded | Medium |
| EC1 | Communication error with the outdoor unit | High |
| Ed0 | No shared data on the network | High |
| Ed1 | Invalid shared data | High |
| Ed4 | Shared data rejected by the control | High |
| RDS 2 flashes | Control board internal fault (leak detection board) | High |
| RDS 3 flashes | R32 sensor communication fault | High |
| RDS 4 flashes | R32 sensor internal fault | High |
| RDS fast flash | R-32 leak alarm (or system verification test) | Critical |
| RDS steady on | Delay mode after leak alarm or fault | Medium |
Models covered
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For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.