Gree Error Code H1: Defrost Mode (Normal)
Warning: Your Gree air conditioner has entered defrost mode, which is normal during cold weather, but it may indicate a problem if it's happening frequently or in warm weather.
How to Fix Gree Code H1
- Check if your system is running in heating mode. If it is, and it's cold outside, the H1 code is likely normal.
- If it's warm outside or the system is running in cooling mode, turn off the unit and call a professional HVAC technician.
- Never attempt to open the unit or tamper with the internal components yourself.
How to Reset Gree Code H1
- Turn off the unit using the remote control or wall controller.
- Turn off the circuit breaker for the outdoor and indoor units. Wait 60 seconds.
- Restore power at the breaker.
- Turn the unit on with the remote control. If the error returns, the fault needs professional diagnosis.
What does H1 mean?
The H1 error code on your Gree air conditioner indicates that the unit has entered defrost mode. This is a normal part of the heating cycle in heat pump systems, especially during cold weather. However, if you're seeing this code frequently or during warm weather, it could be a sign of a problem with your system's defrost mechanism or reversing valve.
Affected Models
Replacement Parts
| Part | OEM Number | Est. Cost |
|---|---|---|
| Defrost Control Board | Gree 3030100000 | — |
| Reversing Valve | Gree 3030200000 | — |
Related Codes on Same Models
| Code | Description | Severity |
|---|---|---|
| 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 |