Haier HSU-09HS03/R2DB, HSU-12HS03/R2DB service manual Overheat ．The system is lack

			Domestic Air Conditioner				HSU-12HS03/R2(DB)
					Model: HSU-09HS03/R2(DB)
Overheat	■	★	■	*		1．The system is lack of
protection for						air	or	overloaded
exhaust						with air
temperature						2．The voltage is too
						high	(over		242V)or
						too	low		(below
						187V)
						3．The capillary tubes
						may be blocked.
						4．Check if the sensor or
						the	controlling			base
						plate parts are wrong
						5．The	indoor&outdoor
						temperature could be
						too high
AC electricity	★	★	■	*		1． Check if		the system
protection						is overloaded				with
						air
						2． Check if the voltage
						is	too	low(below
						187V)
						3． Check if the CT or
						the	base	plate parts
						are all right
DC electricity	★	★	□	*		1． Check if			there	are
protection						seizes			in	the
						compressor
						2． Check if			there	are
						damages			of	the
						power modules
						3． The	voltage is			too
						high (over			242V)or
						too low (187V)
Low power	■	★	□	*		1．Check if the voltage
protection						is too low
						2．Check if the base
						plate is damaged.
Outdoor base	■	★	★	*		1．Check if the base
plate temperature						plate is all right
temperature						2．The			outdoor
						environment
						temperature could be
						too high

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