Gree Error Code E1: High Pressure Protection
Warning: Your Gree HVAC system has detected high pressure and has shut down to prevent damage.
How to Fix Gree Code E1
- Step 1: Check your air filter and replace it if necessary.
- Step 2: If the filter is clean, try restarting the system. If the E1 code reappears, contact a professional.
- Step 3: If you suspect a refrigerant leak, do not attempt to fix it yourself. Contact a professional immediately.
How to Reset Gree Code E1
- 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 E1 Mean?
The E1 error code on your Gree HVAC system indicates that the high pressure switch has been activated. This could be due to a refrigerant leak, a clogged filter, or an issue with the compressor. It's important to note that this is a safety feature and the system has shut down to prevent further damage. Do not attempt to restart the system until the issue has been resolved.
Common Causes
- Refrigerant leak
- Clogged air filter
- Compressor issue
Diagnostic Steps
| If... | Check | Expected |
|---|---|---|
| System is not running | Measure the pressure at the service ports using a manifold gauge set | Less than 300 PSI |
| High pressure is present | Inspect the system for any signs of a refrigerant leak | No leaks visible |
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 |
|---|---|---|---|
| High Pressure Switch | Gree 3102105000 | — | Find Part |
Related Codes on Same Models
Other codes that affect the same Gree model families as E1.
| Code | Description | Severity |
|---|---|---|
| C5 | Jumper/PCB Malfunction | 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 |