Gree Error Code C5: Jumper/PCB Malfunction
Warning: Your Gree HVAC system has encountered a jumper or PCB malfunction, causing it to display the C5 error code. It's safe to operate, but professional repair is needed.
How to Fix Gree Code C5
- Step 1: Turn off your HVAC system at the thermostat and the main power switch.
- Step 2: Contact a professional HVAC technician for repair. Do not attempt to open the unit or repair the PCB yourself.
How to Reset Gree Code C5
- 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 C5 Mean?
The C5 error code on your Gree HVAC system indicates a malfunction with the jumpers or printed circuit board (PCB). This could be due to a faulty component on the board, a broken jumper wire, or even a software issue. The system is still safe to operate, but it's important to have it checked out by a professional to prevent further damage or system failure.
Common Causes
- Faulty component on the PCB
- Broken jumper wire
- Software issue
Diagnostic Steps
| If... | Check | Expected |
|---|---|---|
| Error code C5 is displayed on the control panel | Inspect the PCB for any visible damage, such as burn marks or broken traces | No visible damage |
| No visible damage on the PCB | Check for continuity on the jumper wires using a multimeter | Continuity present |
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 |
|---|---|---|---|
| PCB Assembly | Gree 4606511000 | — | Find Part |
Related Codes on Same Models
Other codes that affect the same Gree model families as C5.
| Code | Description | Severity |
|---|---|---|
| E1 | High Pressure Protection | Warning |
| E2 | Anti-Freeze Protection | Warning |
| E3 | Low Pressure Protection | Warning |
| E5 | Over-Current Protection | Warning |
| E7 | Mode Conflict | Warning |
| F0 | Blower Temp Sensor Malfunction | Warning |
| F3 | Outdoor Ambient Sensor Failure | Warning |
| H1 | Defrost Mode (Normal) | Warning |
| H5 | IPM Protection | Warning |
| P0 | Inverter Module Protection | Warning |