Gree Error Code F2: Indoor Coil Sensor Failure
Warning: Your Gree HVAC system has detected a problem with the indoor coil sensor. It's safe to use, but you should schedule a professional repair soon.
How to Fix Gree Code F2
- Turn off your HVAC system at the thermostat and the circuit breaker to prevent further operation with the faulty sensor
- Contact a professional HVAC technician to schedule a repair appointment
- Do not attempt to open the unit or perform any repairs yourself, as this can void warranties and cause further damage
How to Reset Gree Code F2
- Turn off the unit using the remote control or wall controller.
- Turn off the circuit breaker for the outdoor and indoor units. Wait 60 seconds.
- Restore power at the breaker.
- Turn the unit on with the remote control. If the error returns, the fault needs professional diagnosis.
Resetting clears the code from the display but does not fix the underlying fault. If the code returns after reset, proceed to the diagnostic steps above.
What Does Gree Error Code F2 Mean?
The F2 error code on your Gree HVAC system indicates a failure in the indoor coil sensor. This sensor is responsible for monitoring the temperature of the indoor coil, which helps regulate the airflow and cooling efficiency of your system. When this sensor fails, your HVAC system may not function as intended, leading to reduced comfort and potentially higher energy bills. It's important to address this issue promptly to maintain optimal performance and prevent further damage.
Common Causes
- Wiring issues or corrosion on the sensor
- Sensor has reached the end of its service life
- Faulty control board or other system components causing incorrect readings
Diagnostic Steps
| If... | Check | Expected |
|---|---|---|
| HVAC system is not operating properly | Measure the resistance of the indoor coil sensor using a multimeter | Resistance should be within the manufacturer's specified range (usually between 1000-2000 ohms) |
| Resistance is out of range | Inspect the wiring and connections to the sensor for any signs of damage or corrosion | Wiring should be clean, intact, and properly connected |
Applicable Gree Models
- G-Series(electric)
- NC Series(electric)
- NCA(electric)
- NCB(electric)
- NCB Series(electric)
- NCG(gas)
- NCM(electric)
- NCQ(electric)
- NCV(electric)
- NG Series(gas)
- NPC(electric)
- NPE(electric)
- NPE Series(electric)
- NSC Series(electric)
- NSE(electric)
Replacement Parts
| Part | OEM Number | Est. Cost | Where to Buy |
|---|---|---|---|
| Indoor Coil Sensor | Gree 3020740000 | — | Find Part |
Related Codes on Same Models
Other codes that affect the same Gree model families as F2.
| Code | Description | Severity |
|---|---|---|
| C5 | Jumper/PCB Malfunction | Warning |
| E1 | High Pressure Protection | Warning |
| E2 | Anti-Freeze Protection | Warning |
| E3 | Low Pressure Protection | Warning |
| E4 | Compressor Discharge Temp Protection | Warning |
| E5 | Over-Current Protection | Warning |
| E6 | Communication Error Indoor/Outdoor | Warning |
| E7 | Mode Conflict | Warning |
| E8 | Anti-High Temperature Protection | Warning |
| E9 | Cold Air Prevention | Warning |