Mitsubishi Electronics MUY-D30NA, MUZ-D36NA, MUY-D36NA, U1, MUZ-D30NA service manual Led

The left lamp of OPERA-		LED indication (Out-				Indoor/outdoor
	Abnormal point	door P.C. board)
TION INDICATOR lamp				Condition	Correspondence	unit failure mode
	(Failure mode / protection)
(Indoor unit)						recall function
		LED 1	LED 2
	Converter	5 times	Goes out	A failure is detected in the operation of the converter dur-	• Replace the power board.
				ing operation.
	Bus-bar voltage	5 times	Goes out	The bus-bar voltage exceeds 400 V or falls to 200 V or
	(1)			below during compressor operating.
11-time flash						—
	Bus-bar voltage
	(2)
	Even if this protection stop			The bus-bar voltage exceeds 400 V or falls to 50 V or
	is performed continuously 3	6 times	Goes out
				below during compressor operating.
	times, it does not mean the
	abnormality in outdoor power
	system.

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