Anti-High Temperature And Overload Malfunction - Gree Neo GWH09MA-A3DNA3A Installation, Service & Troubleshooting

High Discharge Temperature Protection of
Compressor.
Status:
Cooling operation, compressor stops while
indoor fans runs. Heating operation, complete
unit stops
Start Troubleshooting
Is outdoor temperature above 127
Remove power, then restart after 20
minutes
Are indoor and outdoor coils clean
and free from obstructions?
Yes
Are indoor and outdoor fans
operating properly?
Yes
Replace AP1 control board
End Troubleshooting
Troubleshooting

Anti-high temperature and overload malfunction

Normal protection, outdoor
Yes
F ambient is higher than normal
0
No
1. Check fan for obstruction
No 2. Check resistance of fan
leads and voltage to
motor
3. Check fan connections
1. Is unit running in proper outdoor ambient range
2. Faulty outdoor temperature sensor
3. Refrigerant leak
4. Poor airflow of outdoor unit
5. Follow Troubleshooting procedure
parameters
Clean Coils
Replace fan
Outdoor Fan Connection
131