Gree Error Code F0: Blower Temp Sensor Malfunction
Warning: Your Gree HVAC system has detected a blower temperature sensor malfunction. It's safe to operate, but you should schedule a professional repair soon.
How to Fix Gree Code F0
- Turn off your HVAC system at the thermostat and the circuit breaker to prevent further operation until a professional can inspect it.
- Do not attempt to clean or replace the sensor yourself, as this requires specialized knowledge and tools.
- Contact a professional HVAC technician to diagnose and repair the issue.
How to Reset Gree Code F0
- 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 F0 Mean?
The F0 error code on your Gree HVAC system indicates that the blower temperature sensor is not functioning correctly. This sensor is responsible for monitoring the temperature of the air leaving the blower. When it malfunctions, your system may not heat or cool properly, leading to reduced comfort and potentially higher energy bills. In some cases, the system might also enter a temporary lockout mode to prevent damage.
Common Causes
- A faulty blower temperature sensor
- Wiring issues between the sensor and the control board
- Dirty or blocked sensor
- Control board malfunction
Diagnostic Steps
| If... | Check | Expected |
|---|---|---|
| The blower is running but the system is not heating or cooling | Measure the resistance across the blower temperature sensor using a multimeter. The resistance should change with temperature. | Resistance should vary with temperature. If it's constant or out of range (typically 5-15kΩ), the sensor is likely faulty. |
| The system is in lockout mode | Check the wiring between the blower temperature sensor and the control board for any breaks, corrosion, or disconnections. | Wiring should be intact and free of damage. |
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 |
|---|---|---|---|
| Blower Temperature Sensor | Gree 3100125000 | — | Find Part |
Related Codes on Same Models
Other codes that affect the same Gree model families as F0.
| 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 |