Indoor room temperature sensor fault
What it means
On Gree units, F1 usually means the indoor room temperature sensor is open or shorted, so the unit cannot read room temperature correctly. The meaning can vary by model, so check the manual for your unit.
Symptoms3
- The unit does not hold the set temperature.
- It runs nonstop or stops at odd times.
- The code shows on the indoor display.
Possible causes4
- Failed room temperature sensor.
- Loose sensor plug on the control board.
- Moisture or corrosion at the sensor connector.
- Indoor control board fault, which is less common.
How to diagnose and fix3
- Cut power for two minutes, then restart.
- Have a technician measure the sensor resistance and reseat the plug.
- Sensor replacement is usually quick and inexpensive.
Repair cost
In Saudi riyals; the highlighted part is the expected range for this fault.
The sensor is a cheap part; cost rises only if the control board is at fault.
Prices are rough estimates including the part and the technician’s fee, and vary with brand, model and part source.
Frequently asked questions
Can I use the AC in the meantime?
Some models keep running roughly, but temperature control will not be accurate.
Is it a serious fault?
No, it is usually one of the simplest and cheapest repairs.
This guide is for information only and does not replace an inspection by a qualified technician. If the fault involves brakes, steering, engine temperature, electrics or refrigerant, do not attempt the repair yourself.
Report a mistake
Spotted something inaccurate? Tell us and we will review and correct it.
Report received — thank you
This is your private tracking link. It shows the status and our reply as soon as it is posted.
The link is saved in this browser only.