Haier HSU-18HKAG(R2DB) Trouble shooting, Before asking for service, check the following first

Trouble shooting

Before asking for service, check the following first.

	Phenomenon	Cause or check points
	The system does not restart	When unit is stopped, it won't restart
		immediately until 3 minutes have
	immediately.
		elapsed to protect the system.
		When the electric plug is pulled out
		and reinserted, the protection circuit
		will work for 3 minutes to protect the
		air conditioner.
		During unit operation or at stop,
		a swishing or gurgling noise may
		be heard.At first 2-3 minutes after
	Noise is heard	unit start, this noise is more noticeable.
		(This noise is generated by
		refrigerant flowing in the system.)
		During unit operation, a cracking
		noise may be heard.This noise is
Normal		generated by the casing expanding
		or shrinking because of
Performance
		temperature changes.
inspection
		Should there be a big noise from
		air flow in unit operation, air
		filter may be too dirty.
	Smells are generated.	This is because the system
		circulates smells from the interior
		air such as the smell of furniture,
		paint, cigarettes.
	Mist or steam are blown out.	During COOL or DRY operation,
		indoor unit may blow out mist.
		This is due to the sudden cooling
		of indoor air.
		In DRY mode, when room
	In dry mode, fan	temperature becomeslower
		than temp.setting+2oC,unit will
	speed can’t be changed.	run intermittently at LOW speed
		regardless of FAN setting.
		Is power plug inserted?
		Is there a power failure?
		Is fuse blownout?
		Is the air filter dirty?
		Normally it should be cleaned
Multiple	Poor cooling	every 15 days.
		Are there any obstacles before
check		inlet and outlet?
		Is temperature set correctly?
		Are there some doors or
		windows left open?
		Is there any direct sunlight
		through the window during the
		cooling operation?(Use curtain)
		Are there too much heat sources
		or too many people in the room
		during cooling operation?

T1: Application temp. range of air conditioner -7oC~43oC.

T3: Application temp. range of air conditioner -7oC~54oC.

Cautions

The machine is adaptive in following situation

1.Applicable ambient temperature range:

For:	T1		Indoor		Maximum: D.B / W.B	o	o
						32oC/23oC
		Cooling			Minimum: D.B / W.B	18	C/14 C
			Outdoor		Maximum: D.B	43oC/26oC
					Minimum: D.B	18oC
For:	T3
				Maximum: D.B / W.B		29o C/19 o C
			Indoor	Minimum: D.B / W.B		18o C/14 o C
		Cooling
				Maximum: D.B / W.B		54o C/24 o C
			Outdoor
				Minimum: D.B		18o C

2.If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similar qualified person. The type of connecting wire is H05RN-F or H07RN-F

3.If the fuse on PC board is broken please change it with a fuse type T. 3.15A/250V.

If the fuse of outdoor unit on PC board is broken, please change it with the type of T. 25A/250V.

4.The distance between the indoor unit and the floor should be more than 2m.

5.The wiring method should be in line with the local wiring standard.

6.After installation, the power plug should be easily reached. 7.The used batteries should be disposed of properly.

8.The appliance is not intended to use by young children or infirm persons without supervision.

9.Young children should be supervised ensure that they do not play with the appliance.

10.The appliance must be installed on a strong enough support. 11.The wiring diagram is attached inside the machine.

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