Forbes Error Codes
33 Forbes fault codes. Select a code for the meaning, cause and fix.
- E0 Outdoor EE fault
- E1 Indoor fan fault
- E2 Indoor fan zero-crossing detection abnormal
- E3 Indoor coil fault and sensor fault
- E4 Indoor ambient temperature sensor fault
- E6 Indoor and outdoor communication fault
- E9 WiFi module fault
- EE Indoor machine EE fault
- EH Humidity sensor fault
- F1 Compressor starting abnormal
- F2 Compressor out-of-step fault
- F3 IPM module fault
- F4 Compressor shell fault/protection
- F5 Discharge temperature sensor fault
- F6 Suction temperature sensor fault
- F7 Outdoor coil temperature sensor fault
- F8 Outdoor ambient temperature sensor fault
- F9 Outdoor DC fan fault
- L1 Drive bus voltage over-high protection
- L2 Drive bus voltage over-low protection
- L3 Drive phase current overload fault
- L4 Phase current sampling abnormal
- P1 Outdoor machine AC current protection
- P2 Compressor phase current protection
- P3 Outdoor unit over-high/over-low AC voltage protection
- P4 DC voltage over-high or over-low protection
- P5 IPM over-high temperature protection
- P6 Discharge temperature overheat protection
- P7 Cooling indoor coil anti-freezing protection
- P8 Cooling outdoor coil overheat protection
- P9 Heating indoor coil overheat protection
- PC Cooling outdoor ambient temperature over-low protection
- PH Heating outdoor ambient temperature over-high protection