Carrier CAC18CNLWB Window Ac Error Codes
CAC18CNLWB Error Code Reference
Section titled “CAC18CNLWB Error Code Reference”Carrier 18000 BTU window AC with auto-restart and sleep mode
| Error Code | Fault Description |
|---|---|
| E1 | Room temperature sensor fault |
| E2 | Evaporator coil sensor fault |
| E3 | High pressure protection |
| E4 | Compressor overload protection |
| P1 | Coil freeze protection |
| EE | EEPROM / PCB memory fault |