Gree NCQ HVAC System Error Codes
NCQ-180E.
Fuel: electric. 22 error codes documented.
Severity breakdown:
22 warning
Error Codes
| Code | Description | Severity |
| C5 | Jumper/PCB Malfunction | Warning |
| E1 | High Pressure Protection | Warning |
| E2 | Anti-Freeze Protection | Warning |
| E3 | Low Pressure Protection | Warning |
| E4 | Compressor Discharge Temp Protection | Warning |
| E5 | Over-Current Protection | Warning |
| E6 | Communication Error Indoor/Outdoor | Warning |
| E7 | Mode Conflict | Warning |
| E8 | Anti-High Temperature Protection | Warning |
| E9 | Cold Air Prevention | Warning |
| F0 | Blower Temp Sensor Malfunction | Warning |
| F1 | Indoor Ambient Sensor Failure | Warning |
| F2 | Indoor Coil Sensor Failure | Warning |
| F3 | Outdoor Ambient Sensor Failure | Warning |
| F4 | Outdoor Coil Sensor Failure | Warning |
| F5 | Compressor Discharge Sensor Failure | Warning |
| H1 | Defrost Mode (Normal) | Warning |
| H3 | Compressor Overload Protection | Warning |
| H5 | IPM Protection | Warning |
| H6 | Indoor Fan Motor Malfunction | Warning |
| P0 | Inverter Module Protection | Warning |
| U7 | Reversing Valve Malfunction | Warning |
Cross-Reference: Shared Codes with Other Gree Models