Gree · Mini-split
E1 High pressure protection
What this code means
The refrigerant pressure on the high side has exceeded a safe threshold and the compressor shuts down to protect itself.
Most likely causes
- Blocked or dirty outdoor condenser coil
- Outdoor fan motor not spinning
- Overcharged or restricted refrigerant line
What to try first
Clear any obstruction around the outdoor unit and confirm the outdoor fan spins freely by hand while powered off.
Safety note: if this code returns after one clean reset, stop resetting it — repeated lockouts usually mean a real fault that needs a licensed technician. Never bypass a safety switch.
FAQ
What does Gree error code E1 mean?
High pressure protection. The refrigerant pressure on the high side has exceeded a safe threshold and the compressor shuts down to protect itself.
Can I fix Gree code E1 myself?
Usually not. Clear any obstruction around the outdoor unit and confirm the outdoor fan spins freely by hand while powered off. If the code returns after one reset, it needs a licensed technician.
What causes Gree code E1?
The most common causes are: blocked or dirty outdoor condenser coil; outdoor fan motor not spinning; overcharged or restricted refrigerant line.
Other mini-split brands: Mitsubishi · Daikin · LG · Fujitsu · Carrier · Generic · Panasonic
This information may contain errors or not apply to your exact model — always double-check it against your appliance's own manual before acting. If there's any chance of a gas, fire, electrical, carbon monoxide, or other safety hazard, stop and call a licensed professional or the appropriate agency (e.g. your gas utility) instead of relying on this page alone.