Gree Error Code H5: IPM Protection
Warning: Your Gree HVAC system has detected an issue with the Indoor Protection Module (IPM) and has shut down to prevent damage.
How to Fix Gree Code H5
- Step 1: Turn off your HVAC system at the thermostat and wait for 30 seconds.
- Step 2: Turn the system back on. If the H5 error persists, proceed to the next step.
- Step 3: If the problem continues, it's best to call a professional HVAC technician.
How to Reset Gree Code H5
- 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 H5 Mean?
The IPM is a safety feature in your Gree HVAC system that monitors the indoor unit's operation. If it detects any abnormal conditions, it triggers the H5 error code and shuts down the system. This could be due to a temporary glitch or a more serious issue. It's important to address this problem promptly to prevent further damage or system failure.
Common Causes
- A temporary glitch in the IPM's operation
- A faulty temperature sensor (R1002)
- A problem with the indoor unit's fan (F1001)
- A wiring issue between the IPM and the indoor unit
Diagnostic Steps
| If... | Check | Expected |
|---|---|---|
| The indoor unit's fan is not running | Measure the voltage at the fan motor terminals using a multimeter | 120V AC |
| The temperature sensor (R1002) is not reading correctly | Measure the resistance across the sensor using a multimeter | Between 10kΩ to 100kΩ, depending on the temperature |
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 Protection Module (IPM) | IPM-001 | — | Find Part |
| Temperature Sensor (R1002) | R1002-001 | — | Find Part |
Related Codes on Same Models
Other codes that affect the same Gree model families as H5.
| 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 |