Gree GWH12TB-D3DNA1A

80
Error Code Diagnostics
E1 - E3 Error Codes
E1
E2
E3
High Pressure Protection of System
Status:
During cooling & dehumidifying, indoor unit
operates while other functions stop; During
heating operation, complete unit stops
1. Refrigerant overcharge
2. Dirty outdoor coil
3. Blockage of airfl ow
4. Outdoor ambient too high
Fault & Status Possible Causes
1. Poor air return in indoor unit
2. Fan speed abnormal
3. Indoor coil dirty
Antifreeze Protection
Status:
Cooling operation, compressor stops while
indoor fans runs. Heating operation, complete
unit stops
Low Pressure Protection
Status:
Cooling operation, compressor stops while
indoor fans runs. Heating operation, complete
unit stops
1. Low refrigerant charge