Samsung Electronics 4-7
Ourdoor Unit(cont.)
DISPLAY EXPLANATION (The error indicated on the PCB display of outdoor unit) REMARK
Outdoor unit freezing(Compressor stop)
check pipe lenght, indoor unit filter,
refrigerant leakage/charge and
service port
Outdoor unit overload - Safety control(Compressor stop)
check pipe lenght, refrigerant
leakage/charge
Outdoor unit high discharge temperature - Safety control (Compressor stop)
check pipe lenght, refrigerant
leakage/charge
Outdoor unit EEV open (Stopped indoor unit’s) -Self diagnosis
Outdoor unit EEV open (operating indoor unit’s) -Self diagnosis
High temperature(over 30°C) of outdoor as heating mode
Low temperature(under -10°C) of outdoor as cooling mode
Outdoor Fan Error
Communication cable mismatched between indoor and outdoor unit Check electrical connection
Inverter compressor starting failure (5 times)
Compressor trip by input current control mode (PFC over current)
Compressor trip by OLP temperature control mode
Over current
Compressor Vlimit Error
DC link Voltage error (under 150V, over 410V)
Abnormal compressor running (Compressor Rotation Error)
Current sensor error
DC link Voltage sensor error
OTP Error
Inverter micom zero-crossing error
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