Giatsu WD2N8B Serie Manuel De L'utilisateur Et D'installation page 115

ERROR
UPPER UNIT MALFUNCTION
DISPLAY No. CODE
OR PROTECTION
High temperature protection of
air side heat exchanger
33
temperature(T3).
High temperature protection of
65
inverter module
116
DC bus low voltage protection
Inverter or compressor
134
protection
135
DC bus low voltage protection.
DC bus high voltage
136
protection
Current sampling error of PFC
137
circuit
138 Rotating stall protection
139
Zero speed protection
Phase loss protection of
141
compressor
EXV1 fault
121
T4 sensor out of operation
106
range.
In winter, if the unit has E0 and Hb malfunction and the unit is not repaired in time, the water pump and pipeline systerm
may be damaged by freezing, so E0 and Hb malfunction must be repaired in time.
50