Carrier 42QHC030DS Air Conditioner Error Codes
42QHC030DS Error Code Reference
Section titled “42QHC030DS Error Code Reference”Carrier 42QHC-series 30000 BTU inverter split AC
| Error Code | Fault Description |
|---|---|
| E2 | Indoor thermistor fault |
| E5 | Discharge temperature thermistor fault |
| E6 | Communication fault |
| E8 | Indoor fan motor fault |
| HP | High pressure protection |
| LP | Low pressure protection |