American Standard Error Code | What this means |
---|---|
Green light on, slow flashing, or fast flashing | Unit is operating normally |
Amber light on | Unit requires refrigerant |
Red 1 flash | Communication error |
Red 2, 3, and 4 flashes | Defrost fault |
Red 5 flashes | Fault with the ambient temperature sensor |
Red 6 flashes | Fault with the coil temperature sensor |
Red 7 flashes | Low-pressure problem |
Red 13 flashes | Fault with the external temperature sensor |
Red 17 flashes | High-pressure problem |