In brief
Fault code F0 on Gree Lomo / Fairy / Bora means: Fault code F0 is specific to Gree. It is a protection: the system detects that heat exchange is not occurring correctly (often due to a lack of gas or a blocked capillary) and shuts down to prevent compressor damage. The air conditioning then blows warm air. Most common cause: Refrigerant leak (cause #1), blockage in the refrigeration circuit (capillary), or a displaced room temperature sensor. Must be checked by an F-Gas registered engineer. First action: Check flare connections for oil traces.. Call a registered engineer if the fault returns after basic checks or involves refrigerant work (F-Gas registered engineer required).
According to the Gree Service Manual, F0 is triggered when the discharge temperature sensor detects abnormal heat exchange, often due to a refrigerant shortage.
F0 • Gree • Lomo / Fairy / Bora
Gree Fault Code F0: Refrigerant Shortage — Causes
Fault code F0 is specific to Gree. It is a protection: the system detects that heat exchange is not occurring correctly (often due to a lack of gas or a blocked capillary) and shuts down to prevent compressor damage. The air conditioning then blows warm air.
Source: Gree Service Manual - Error Code F0 Flowchart · Last verified 9 September 2026
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What does fault code F0 on Gree mean?
Fault code F0 is specific to Gree. It is a protection: the system detects that heat exchange is not occurring correctly (often due to a lack of gas or a blocked capillary) and shuts down to prevent compressor damage. The air conditioning then blows warm air.
Refrigerant leak (cause #1), blockage in the refrigeration circuit (capillary), or a displaced room temperature sensor. Must be checked by an F-Gas registered engineer.
Differences between product ranges
| Range | Meaning | Exclusion |
|---|---|---|
| Lomo / Fairy / Bora (splits) | Low-refrigerant or blocked-capillary protection (warm air, ice) | Do not port this F0 meaning to another brand without that OEM manual |
| GMV | Same protection family — open the GMV service manual for the exact model | Sensor thresholds follow the GMV notice, not the split flowchart alone |
Symptoms
- The air conditioner blows warm air in cooling mode
- Ice on the indoor heat exchanger
- Compressor stops
Safety notice
Refrigerant handling is reserved to F-Gas certificate holders.
Diagnosis
1. Leak Check
- Check flare connections for oil traces.
- Connect manifold gauges: if pressure is abnormally low, there is a leak.
2. Sensor Check
- Occasionally, a poorly calibrated sensor can mislead the control board, but this is rare for F0.
Repair and return to service — Gree fault F0
Leak search, circuit repair and weighed recharge per the notice. A remote reset does not fix undercharge.
When should you call an F-Gas engineer?
F-Gas required as soon as a leak or recharge is suspected.
Affected models
- Split Gree
- GMV
Field context
Often occurs during seasonal transitions or after an unrepaired micro-leak.
Technical source data
Gree F0 indicates a refrigerant protection / discharge temperature sensor check. Verify sensors, gas charge and expansion valve before intervening on the compressor.
Sources
- Gree Service Manual - Error Code F0 Flowchart
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Check this code on other brands
Exact match
F0 — Gree
Lomo / Fairy / Bora
Fault code F0 is specific to Gree. It is a protection: the system detects that heat exchange is not occurring correctly (often due to a lack of gas or a blocked capillary) and shuts down to prevent compressor damage. The air conditioning then blows warm air.
Source : Gree Service Manual - Error Code F0 Flowchart
Frequently asked questions
Can I recharge the gas myself?
No, handling refrigerants requires a certificate of competence. In the UK as in France, an F-Gas registered engineer must carry out the work.
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