Gree Air Conditioner F1 Error Code

Indoor room temperature sensor fault on Gree air conditioners.

May need a pro

The sensor that reads room air temperature at the indoor unit has failed or come unplugged. GREE lists it as a 15k ohm sensor.

Compatible models

GREE indoor units in general. Its FAQ doesn't name models, so check the code table in your manual.

Also shown as

GREE's list also has F5 for the temperature sensor in a wired wall controller, on systems that have one.

Difficulty

Try the basic checks, but the usual fix is a technician's job.

How to fix
When to call a pro
Parts
FAQ

Not sure you are reading the code right? See how to read Gree air conditioner codes.

Safety first: unplug the air conditioner (or switch off its breaker) before touching filters, hoses or panels. If you smell burning or gas, or see water near the outlet, stop and call a professional.

How to fix Gree F1

Keep the intake clear
Make sure curtains or furniture aren't covering the indoor unit's intake, where the room sensor reads the air.
Leave the sensor to a pro
GREE's advice includes checking that sensor connections are secure, but that means opening the indoor unit near the board. Let a technician do it.

When to call a technician

If F1 stays, a technician can test and replace the sensor with a GREE part, which GREE recommends.

Parts linked to F1

These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.

Order parts by your full model number so they fit.

Frequently asked questions

Which Gree models show the F1 code?

GREE indoor units in general. Its FAQ doesn't name models, so check the code table in your manual.

Can I fix Gree F1 myself?

Only the basic checks. You can safely try the steps above, but F1 usually points to a part or fault that needs a technician.

Other Gree air conditioner codes

Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.

Sources we checked