Mitsubishi Electric MSZ-GC22VA Instructions d'exploitation télécharger pdf (Page 8)

En-7

● OPERATING INSTRUCTIONS ●

Even if these items are checked, when the unit does not recover from the

trouble, stop using the air conditioner and consult your dealer.

Symptom Explanation & Check points

Indoor Unit

The unit cannot be operated. • Is the breaker turned on?

• Is the power supply plug connected?

• Is the ON timer set? Page 5

All LED lamps on the indoor

unit are blinking.

• Is the horizontal vane installed correctly?

Page 6

The horizontal vane does not

move.

• Are the horizontal vane and the vertical vane

installed correctly? Page 6

• Is the fan guard deformed?

The unit cannot be operated

for about 3 minutes when

restarted.

• This protects the unit according to instruc-

tions from the microprocessor. Please

wait.

Mist is discharged from the air

outlet of the indoor unit.

• The cool air from the unit rapidly cools mois-

ture in the air inside the room, and it turns

into mist.

The swing operation of the

HORIZONTAL VANE is

suspended for a while, then

restarted.

• This is for the swing operation of the HORI-

ZONTAL VANE to be performed normally.

The air ﬂ ow direction changes

during operation.

The direction of the horizontal

vane cannot be adjusted with

the remote controller.

• When the unit is operated in COOL or DRY

mode, if the operation continues with air

blowing down for 0.5 to 1 hour, the direction

of the air ﬂ ow is automatically set to position

(1) to prevent water from condensing and

dripping.

• In the heating operation, if the air ﬂ ow tem-

perature is too low or when defrosting is be-

ing done, the horizontal vane is automatically

set to horizontal position.

The operation is stopped for

about 10 minutes in the heat-

ing operation.

• Defrosting of the outdoor unit is being

done.

Since this is completed in max.10 minutes,

please wait. (When the outside temperature

is too low and humidity is too high, frost is

formed.)

The unit starts operation by

itself when the main power

is turned on, though it isn’t

operated with the remote

controller.

• These models are equipped with an auto re-

start function. When the main power is turned

off without stopping the unit with the remote

controller and is turned on again, the unit

starts operation automatically in the same

mode as the one set with the remote control-

ler just before the shutoff of the main power.

Refer to “Auto restart function” page 4 .

Multi system

The indoor unit which is not

operating becomes warm and

a sound, similar to water ﬂ ow-

ing, is heard from the unit.

• A small amount of refrigerant continues to

ﬂ ow into the indoor unit even though it is

not operating.

When heating operation is

selected, operation does not

start right away.

• When operation is started during defrosting

of outdoor unit is done, it takes a few minutes

(max. 10 minutes) to blow out warm air.

Outdoor Unit

The fan of the outdoor unit

does not rotate even though

the compressor is running.

Even if the fan starts to rotate,

it stops soon.

• When the outside temperature is low dur-

ing cooling operation, the fan operates

intermittently to maintain sufﬁ cient cooling

capacity.

Water leaks from the outdoor

unit.

• During COOL and DRY operations, pipe or

pipe connecting sections are cooled and this

causes water to condense.

• In the heating operation, water condensed

on the heat exchanger drips down.

• In the heating operation, the defrosting op-

eration makes water frozen on the outdoor

unit melt and drip down.

White smoke is discharged

from the outdoor unit.

• In the heating operation, vapor generated

by the defrosting operation looks like white

smoke.

Symptom Explanation & Check points

Remote controller

The display on the remote

controller does not appear

or it is dim. The indoor unit

does not respond to the

remote control signal.

• Are the batteries exhausted? Page 3

• Is the polarity (+, -) of the batteries correct?

Page 3

• Are any buttons on the remote controller of

other electric appliances being pressed?

Does not cool or heat

The room cannot be cooled

or heated sufﬁ ciently.

• Is the temperature setting appropriate?

Page 4

• Is the fan setting appropriate? Please

change fan speed to higher setting.

• Is the ﬁ lter clean? Page 6

• Is the fan or heat exchanger of the indoor unit

clean? Page 6

• Are there any obstacles blocking the air inlet

or outlet of the indoor or outdoor unit?

• Is a window or door open?

The room cannot be cooled

sufﬁ ciently.

• When a ventilation fan or a gas cooker is

used in a room, the cooling load increases,

resulting in an insufﬁ cient cooling effect.

• When the outside temperature is high, the

cooling effect may not be sufﬁ cient.

The room cannot be heated

sufﬁ ciently.

• When the outside temperature is low, the

heating effect may not be sufﬁ cient.

Air does not blow out soon in

the heating operation.

• Please wait as the unit is preparing to blow

out warm air.

Airﬂ ow

The air from the indoor unit

smells strange.

• Is the ﬁ lter clean? Page 6

• Is the fan or heat exchanger of the indoor unit

clean? Page 6

• The unit may suck in an odor adhering to the

wall, carpet, furniture, cloth, etc. and blow it

out with the air.

Sound

Cracking sound is heard. • This sound is generated by the expansion/

contraction of the front panel, etc. due to

change in temperature.

The sound as burbling is

heard.

• This sound is heard when the outside air is

absorbed from the drain hose by turning on

the range hood or the ventilation fan, making

water ﬂ owing in the drain hose to spout out.

This sound is also heard when the outside air

blows into the drain hose in case the outside

wind is strong.

Mechanical sound is heard

from the indoor unit.

• This is the switching sound in turning on/off

the fan or the compressor.

The sound of water ﬂ owing

is heard.

• This is the sound of refrigerant or condensed

water ﬂ owing in the unit.

Hissing sound is sometimes

heard.

• This is the sound when the ﬂ ow of refrigerant

inside the unit is switched.

In the following cases, stop using the air conditioner and consult your

dealer.

• When water leaks or drips from the indoor unit.

• When the upper operation indicator lamp blinks.

• When the breaker trips frequently.

• The remote control signal is not received in a room where an electronic ON/OFF

type ﬂ uorescent lamp (inverter-type ﬂ uorescent lamp, etc.) is used.

• Operation of the air conditioner interferes with radio or TV reception. An ampli-

ﬁ er may be required for the affected device.

• When an abnormal sound is heard.

WHEN YOU THINK THAT TROUBLE HAS OCCURRED

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Mitsubishi Electric MSZ-GC22VA Instructions d'exploitation Page 8

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