Mitsubishi Electronics SLZ-A09, A18AR Troubleshooting, Installation, relocation and inspection

4. Troubleshooting

Before you call out a repair man, check the following table to see whether there is a simple solution to your problem.

Problem	Solution	Problem	Solution
Unit does not cool or heat very well.	Clean the filter.	The operation lamp of the wireless re-	A self-diagnostic function is being per-
		mote controller’s receiver is flashing.	formed to preserve the air conditioner.
The airflow direction suddenly changes.	After one hour of cooling mode or drying
			* Do not attempt to make repairs your-
	mode operation with the airflow in a
			self. Turn the main switch off and con-
	downward direction, the unit will auto-
			tact the dealer from whom you bought
	matically change to the “Horizontal air-
			the air conditioner. Provide him or her
	flow” mode.
			with the name of the unit and the
	When the unit is in the heating or defrost-
			number of times the operation lamp of
	ing mode, it will automatically change to
			the wireless remote controller’s receiver
	the “Horizontal airflow” mode.
			flashes.
A white mist is expelled from the indoor	This may occur just after the unit is turned
		Unit operates even if ON/OFF button has	It occurs for the AUTO RESTART FUNC-
unit.	on when a high level of humidity is
		not been pressed.	TION mode.
	present in the room.
			Press the ON/OFF button to stop opera-
The air conditioner cannot be operated	This protects the air conditioner accord-
			tion.
for about 3 minutes when restarted.	ing to instructions from the microproces-
		No indication of wireless remote control-	The batteries have run out.
	sor. Please wait.
		ler, indication is dim, or signal transmis-	Replace the batteries with new ones (size
Air does not blow out soon in the heating	Please wait as the air conditioner is pre-
		sion cannot reach remote controller sen-	AAA), and then press the reset button.
operation.	paring to blow out warm air.
		sor.	Though both alkaline batteries and man-
The start and stop functions are not avail-	Wait about three minutes (operation has		ganese batteries can be used, alkaline
able just after restarting the unit.	stopped to prevent damage to the air con-		batteries are recommended because their
	ditioner).		service life is longer than that of manga-
The operation is stopped for about	Defrosting of the outdoor unit is being		nese batteries.
10 minutes in the heating operation.	done (Defrosting operation).		* If indication is not detected even when
	Since this is completed in 10 minutes,		new batteries have been replaced,
	please wait. (When the external tempera-		check that the batteries have been in-
	ture is too low and humidity is too high,		stalled properly.
	frost is formed.)

If none of the above apply, turn the main switch off and contact the dealer from whom you bought the air-conditioner, telling him the model name and the

nature of the problem. Do not try to fix the unit yourself.

In any of the following cases, turn off the main power switch and contact your local dealer for service:

•The operation lamp (on the main unit) flashes.

•The switches do not work properly.

•The circuit breaker trips frequently (or the fuse blows frequently).

•Water has accidentally been splashed into the unit.

•Water leaks from the unit.

•Something is accidentally dropped into the air-conditioner.

•An unusual noise is heard during operation.

The following do not indicate any malfunction:

Odours: smells such as tobacco or cosmetic odours may persist after they have been sucked into the unit.

Sound of liquid flowing inside indoor unit: this can occur during or after operation and is simply the sound of refrigerant being circulated inside the unit.

Ticking sound coming from indoor unit: this can occur when cooling or heating has just begun or has just stopped. It is caused by the indoor unit shrinking or expanding slightly due to the change in temperature.

5. Installation, relocation and inspection

Installation place

Avoid installing the air conditioner in the following places.

•Where flammable gas could leak.

Caution:

Do not install the unit where flammable gas could leak.

If gas leaks and collects around the unit, it may cause an explosion.

•Where there is much machine oil.

•Salty place such as the seaside.

•Where sulfide gas is generated such as a hot spring.

•Where there is oil splashing or much oily smoke.

To prevent the effect of a fluorescent lamp, keep it away as far apart as possible.

Inverter type fluorescent lamp

To prevent picture distortion or noise, keep 1 m or more apart.

TV

Wall, etc.

Well- ventilated dry place

100 mm or more

400 mm or more

Warning:

If the air conditioner operates but does not cool or heat (depending on model) the room, consult your dealer since there may be a refrig- erant leak. Be sure to ask the service representative whether there is refrigerant leakage or not when repairs are carried out.

The refrigerant charged in the air conditioner is safe. Refrigerant nor- mally does not leak, however, if refrigerant gas leaks indoors, and comes into contact with the fire of a fan heater, space heater, stove, etc., harmful substances will be generated.

Radio

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