Error Code Diagnostics - Gree TERRA09HP230V1A Installation, Service & Troubleshooting

EE, EU, FH Error Codes
EE
EEProm Malfuntion
Status:
During cooling & dehumidifying, indoor unit
operates while other functions stop; During
heating operation, complete unit stops
EU
Decrease in Frequency due to over heating
of Module
Status:
All units operate with decrease in capacity
FH
Decrease frequency due to anti-freezing
Status:
All units operate with decrease in capacity
78

Error Code Diagnostics

Fault & Status Possible Causes
1. Faulty outdoor control board, replace AP1
1. After the unit is off for 20 minutes, check for
sufficient thermal grease on IPM module of
the outdoor control board and that is seated
tightly.
2. Faulty control board, replace
1. Poor air return in indoor unit
2. Fan speed too slow