Samsung MH026FNCA service manual Outdoor Unitcont

Alignment and Adjustments

Outdoor Unit(cont.)

Display	EXPLANATION(The error indicated on the PCB display of outdoor unit)	REMARK
		check pipe length, indoor
	Outdoor unit freezing(Compressor stop)	unit filter, refrigerant leakage/
		charge and service port
	Outdoor unit overload - Safety control(Compressor stop)	check pipe length, refrigerant
		leakage/charge
	Outdoor unit high discharge temperature - Safety control	check pipe length, refrigerant
	(Compressor stop)	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
	DC peak error (IPM Over Current)
	Compressor Limit 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

NO GAS error(self diagnosis)

Piping(gas leak)

3-5 Samsung Electronics