Service Manual

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2. Service Diagnosis
Error Codes
Error Check Possible Cause Remedy
E1 Inlet water valve Closing failure Clean or replace
Refrigeration circuit Gas leak Repair
Clogged capillary Replace heat exchanger
Clogged expansion valve Replace
Compressor Defective Replace
Starting failure Check supply voltage or replace
electrical components
Compressor relay Coil circuit open Replace
Condenser Clogged Clean
Fan motor Locked Replace
Low RPM Replace
Broken fan Replace fan
Hot gas valve Closing failure Replace
Control board Blown fuse Replace fuse
Evaporator (cube control)
thermistor
Disconnected Reconnect
E2 Hot gas valve Opening failure Replace
Control board Blown fuse Replace fuse
EE (E3) Actuator motor Defective Replace
Control board Relay contact failure Replace
Blown fuse Replace fuse
EE (E4) Actuator motor Defective Replace
Control board Relay contact failure Replace
Blown fuse Replace fuse
EE (E5) Hot gas valve Closing failure Replace
Control board Relay contact failure Replace
EE (E7) Fan motor Locked Replace
Locked fan Remove obstacle
Connector disconnected Reconnect
Open circuit Repair
EE (E8) Pump motor Locked Replace
Connector disconnected Reconnect
Open circuit Repair
EE (EA) Control board Data error Replace
EE (EC) Evaporator (cube control)
thermistor
Open or short circuit Replace
Control board Connector disconnected Reconnect