Gree FH fault code
Gree air conditioning
What the Gree FH fault code means, from the manufacturer's own service literature, and the UK models it applies to.
What it means
Compressor speed reduced to stop the indoor coil freezing.
Source: Gree (Zhuhai) Service Manual, Bora Inverter R32 §9.1 Error Code List
UK models this code applies to
Tap yours to open FH on that machine.
Cassettes8
Ducted16
Ceiling or floor8
Indoor and outdoor pairs9
Outdoor units4
FH on these comes from each model's own manual, which may not match the meaning above — tap yours to read it.
Now the harder half: proving what caused it
FH names a symptom, not a root cause. In the app, the same code opens a guided investigation: what to measure first, the expected values for your exact model, and an honest verdict — including “nothing in this machine is broken” when that's what the readings say.
Chase FH on your machine →Free, no sign-up. Pick the model: where we hold a chart for it, it takes you through one question at a time.
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Related codes
- F4Outdoor condenser coil sensor open/short
- F5Outdoor discharge sensor open/short
- F6Frequency limited — overload
- F8Frequency limited — whole-unit current
- F9Frequency limited — discharge temperature
- FoFreon recovery mode
- H3Compressor overload protection
- H5IPM module current protection
- H6No feedback from the indoor fan motor
- H7Compressor desynchronising (loss of position)