Gree Error Code F1: Indoor Ambient Sensor Failure
Warning: Your Gree HVAC system has detected an issue with the indoor ambient sensor. It's safe to use, but needs professional attention.
How to Fix Gree Code F1
- Step 1: Turn off your HVAC system at the thermostat and the main power switch.
- Step 2: Contact a professional HVAC technician to diagnose and repair the issue.
- Step 3: Until the issue is resolved, you can use a portable space heater or fan to maintain comfort in your home.
How to Reset Gree Code F1
- 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 F1 Mean?
The F1 error code on your Gree HVAC system indicates a failure in the indoor ambient temperature sensor. This sensor is responsible for measuring the temperature in your living space and communicating it to the system's control board. When it fails, your HVAC system may not function properly or at all. It's important to note that this is not a safety hazard, but it does require professional repair to restore your system's full functionality.
Common Causes
- A faulty indoor ambient temperature sensor (most common)
- A broken wire connecting the sensor to the control board
- Incorrect sensor calibration
- Interference from other electronic devices
Diagnostic Steps
| If... | Check | Expected |
|---|---|---|
| HVAC system is not functioning | Check the indoor ambient temperature sensor for any visible damage or disconnection | No visible damage and securely connected |
| Sensor appears intact | Measure the resistance across the sensor terminals using a multimeter | Resistance should match the manufacturer's specifications (typically around 10kΩ ±20%) |
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 Ambient Temperature Sensor | Gree 3010358000 | — | Find Part |
Related Codes on Same Models
Other codes that affect the same Gree model families as F1.
| 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 |