Mitsubishi Electric PKA-A12HAL Specifications download pdf (Page 17)

11"

Trouble Shooting

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Airflow direction changes during operation or airflow direction cannot be

• During cooling mode, the vanes automatically move to the horizontal

set.

(down) position after 1 hour when the down (horizontal) airflow direc-

tion

selected, This

prevent water from forming and dripping

from the vanes.

• During heating mode, the vanes automatically move to the horizontal

airflow direction when the airflow temperature

low or during defrost-

ing mode.

When the airflow direction is changed, the vanes always move up and

• When the airflow direction

changed, the vanes move to the set po-

down past the set position before finally stopping at the position.

sition after detecting the base position.

A flowing water sound or occasional hissing sound is heard.

• These sounds can be heard when refrigerant is flowing in the air con-

ditioner or when the refrigerant flow

changing.

A cracking or creaking sound

heard.

• These sounds can be heard when parts rub against each due to ex-

pansion and contraction from temperature changes.

The room has an unpleasant odor.

• The indoor unit draws in air that contains gases produced from the

walls, carpeting, and furniture as well as odors trapped in clothing,

and then blows this air back into the room.

A white mist

vapor is emitted from the indoor unit.

• If the indoor temperature and the humidity are high, this condition

may occur when operation starts.

• During defrosting mode, cool airflow may blow down and appear like

a mist.

water

or vapor is emitted from the outdoor unit.

• During cooling mode, water may form and drip from the cool pipes

and joints.

• During heating mode, water may form and drip from the heat ex-

changer.

• During defrosting mode, water

the heat eXchanger evaporates

and

water vapor may be emitted.

The ooeration indicator does not aopear

the remote controller display.

•

Tum

the

power switch.

"@"

will aooear in the remote controller

display.

"S' appears in the remote controller display.

• During central control,

'S"

appears in the remote controller display

and air conditioner operation cannot be started or stopped using the

remote controller.

When restarting the air conditioner soon after stopping it, it does not

op-

•

wait

approximately three minutes.

erate even though the ON/OFF button is pressed. (Operation has stopped to protect the air conditioner.)

Air conditioner operates without the ON/OFF button being pressed.

• Is the

timer set?

Press

the

ON/OFF button to stop operation.

• Is the air conditioner connected to a central remote controller?

Consult

the

concerned people who control the air conditioner.

• Does

'S"

appear in the remote controller display?

Consult the concerned people who control the air conditioner.

• Has the auto recovery

feature from power failures been set?

Press the ON/OFF button to stop operation.

Air conditioner stops without the ON/OFF button being pressed.

• Is the off timer set?

Press the ON/OFF button to restart operation.

• Is the air conditioner connected to a central remote controller?

Consult the concerned people who control the air conditioner.

• Does

W appear in the remote controller display?

Consult the concerned people who control the air conditioner.

Remote controller timer operation cannot be set.

• Are timer settings invalid?

the timer can be set, ( WEEKLY), ( SIMPLE l, or

Qill!QOQEE)

appears

the remote controller display.

"PLEASE WAIT" appears in the remote controller display.

• The initial settings are being performed.

wait

approximately 3 min-

utes.

error code appears

the remote controller display.

• The protection devices have operated to protect the air conditioner.

• Do not attempt to repair this equipment by yourself.

Tum off the power switch immediately and consult your dealer. Be

sure to provide the dealer with the model name and information that

appeared

the remote controller display.

Draining water or motor rotation sound is heard.

• When cooling operation stops, the drain pump operates and then

stops.

wait

approximately 3 minutes.

Noise is louder than specifications.

• The indoor operation sound level is affected

the acoustics of the

particular room as shown

the

follOWing

table and will

higher than

the noise specification, which was measured in an echo-free room.

High

sound-

Normal rooms

Low sound-ab-

absorbing

rooms

sorbing rooms

Location

Broadcasting Reception

Office, hotel

examples

studio, music room, hotel

room

room, etc.

lobby, etc.

Noise levels

3 to 7 dB

6t010dB

9 to 13 dB

Nothing appears in the wireless remote controller display, the display

• The batteries are

low.

faint, or signals are not received

the indoor unit unless the remote Replace the batteries and press the Reset button.

controller is close.

• If nothing appears even after the batteries are replaced, make sure

that the batteries are installed in the correct directions

(+,

-).

The operation lamp near the receiver for the wireless remote controller

• The self diagnosis function

has

operated to protect the air conditioner.

the indoor unit is blinking.

• Do not attempt to repair this equipment

yourself.

Tum off the power switch immediately and consult

your

dealer.

sure to provide the dealer with the model name.

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Mitsubishi Electric PKA-A12HAL Specifications Page 17

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