Gree Error Code H1: Defrost Mode (Normal)

How to Fix Gree Code H1

1. Check if your system is running in heating mode. If it is, and it's cold outside, the H1 code is likely normal.
2. If it's warm outside or the system is running in cooling mode, turn off the unit and call a professional HVAC technician.
3. Never attempt to open the unit or tamper with the internal components yourself.

How to Reset Gree Code H1

1. Turn off the unit using the remote control or wall controller.
2. Turn off the circuit breaker for the outdoor and indoor units. Wait 60 seconds.
3. Restore power at the breaker.
4. Turn the unit on with the remote control. If the error returns, the fault needs professional diagnosis.

Resetting clears the code from the display but does not fix the underlying fault. If the code returns after reset, proceed to the diagnostic steps above.

What Does Gree Error Code 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.

Common Causes

• The system is running in heating mode during cold weather
• Frost buildup on the outdoor coil
• Malfunctioning defrost control board
• Faulty reversing valve

Diagnostic Steps

Replacement Parts

Related Codes on Same Models

Other codes that affect the same Gree model families as H1.