Indoor coil temp. sensor failure

	For remote Failure description		Reason	Remarks
	type, flash
	times
1		Indoor ambient temp. sensor failure	Sensor broken down or short circuit for more than 2m continuously
2		Indoor coil temp. sensor failure	Sensor broken down or short circuit for more than 2m continuously
3		Outdoor ambient temp. sensor failure	Sensor broken down or short circuit for more than 2m continuously
4		Outdoor coil temp. sensor failure (compressor	Sensor broken down or short circuit for more than 2m continuously
		discharging temp. sensor)

	5	Over-current protection	CT check abnormal 3 times in 30m
6		High pressure abnormal	High pressure switch acts 3 times in 30m
7		Power supply abnormal	Fault phase, short of phase, out of balance greatly
		Communication between wired
8		controller and indoor abnormal	Communication abnormal for more than 4m continuously
9		Communication between indoor and outdoor abnormal	Communication abnormal for more than 4m continuously
10		Drainage system abnormal	Float switch broken down for more than 25m continuously
11		Outside alarm signal input	Outside signal broken down for more than 10s
12		Gas pipe temp. sensor abnormal	Sensor broken down or short circuit for more than 2m continuously
13		Solenoid valve abnormal	Solenoid valve act incorrectly 3 times continuously
14		Discharging temp. sensor abnormal	Sensor broken down or short circuit for more than 2m continuously
15		EEPROM abnormal	EEPROM data missing
16		Pressure abnormal(low pressure)	Low pressure switch acts in normal running
				Resumable if
17		Compressor overheat	The discharging temperature is higher than 120degree	lower than 100
17		Compressor overheat	The discharging temperature is higher than 120degree	degree
18		Abnormal mode	Indoor operation mode is different with the running indoor unit.

19Outdoor coil B(suction temp sensor-for MRV II) Sensor broken down or short circuit for more than 2m continuously

20Outdoor discharging B(oil temp sensor-for MRV II) Sensor broken down or short circuit for more than 2m continuously

shows resumable fault, * shows it is not resumable fault.

When Trouble Happens

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Outdoor ambient temp. sensor failure

AB28NACBEA, AB42NACBEA, AB242ACBEA, AB142ACBEA, AB52NACBEA specifications