Trouble Shooting - Mitsubishi Electric Mr.Slim PEAD-M140JA Bedienungshandbuch

7. Trouble Shooting

Having trouble?
Air conditioner does not heat or cool well.
When heating operation starts, warm air does not blow from the indoor
unit soon.
During heating mode, the air conditioner stops before the set room
temperature is reached.
Airflow direction changes during operation or airflow direction cannot be
set.
When the airflow direction is changed, the vanes always move up and
down past the set position before finally stopping at the position.
A flowing water sound or occasional hissing sound is heard.
A cracking or creaking sound is heard.
The room has an unpleasant odor.
A white mist or vapor is emitted from the indoor unit.
Water or vapor is emitted from the outdoor unit.
" " appears in the remote controller display.
When restarting the air conditioner soon after stopping it, it does not
operate even though the ON/OFF button is pressed.
Air conditioner operates without the ON/OFF button being pressed.
Air conditioner stops without the ON/OFF button being pressed.
Remote controller timer operation cannot be set.
"PLEASE WAIT" appears in the remote controller display.
An error code appears in the remote controller display.
Draining water or motor rotation sound is heard.
The vanes do not move or the indoor unit does not respond to input from
the wireless remote controller.
All manuals and user guides at all-guides.com
■ Clean the filter. (Airflow is reduced when the filter is dirty or clogged.)
■ Check the temperature adjustment and adjust the set temperature.
■ Make sure that there is plenty of space around the outdoor unit. Is the
■ Has a door or window been left open?
■ Warm air does not blow until the indoor unit has sufficiently warmed up.
■ When the outdoor temperature is low and the humidity is high,
■ During heating mode, the vanes automatically move to the horizontal
■ When the airflow direction is changed, the vanes move to the set
■ These sounds can be heard when refrigerant is flowing in the air
■ These sounds can be heard when parts rub against each due to
■ The indoor unit draws in air that contains gases produced from the
■ If the indoor temperature and the humidity are high, this condition may
■ During defrosting mode, cool airflow may blow down and appear like a
■ During cooling mode, water may form and drip from the cool pipes and
■ During heating mode, water may form and drip from the heat exchanger.
■ During defrosting mode, water on the heat exchanger evaporates and
■ During central control, "
■ Wait approximately three minutes.
■ (Operation has stopped to protect the air conditioner.)
■ Is the on timer set?
■ Is the air conditioner connected to a central remote controller?
■ Does "
■ Has the auto recovery feature from power failures been set?
■ Is the off timer set?
■ Is the air conditioner connected to a central remote controller?
■ Does "
■ Are timer settings invalid?
■ The initial settings are being performed. Wait approximately 3 minutes.
■ The protection devices have operated to protect the air conditioner.
■ Do not attempt to repair this equipment by yourself.
■ When cooling operation stops, the drain pump operates and then
■ The junction wire connectors of the vane motor and signal receiver may
Here is the solution. (Unit is operating normally.)
indoor unit air intake or outlet blocked?
frost may form on the outdoor unit. If this occurs, the outdoor unit
performs a defrosting operation. Normal operation should begin after
approximately 10 minutes.
airflow direction when the airflow temperature is low or during
defrosting mode.
position after detecting the base position.
conditioner or when the refrigerant flow is changing.
expansion and contraction from temperature changes.
walls, carpeting, and furniture as well as odors trapped in clothing, and
then blows this air back into the room.
occur when operation starts.
mist.
joints.
water vapor may be emitted.
" appears in the remote controller display
and air conditioner operation cannot be started or stopped using the
remote controller.
Press the ON/OFF button to stop operation.
Consult the concerned people who control the air conditioner.
" appear in the remote controller display?
Consult the concerned people who control the air conditioner.
Press the ON/OFF button to stop operation.
Press the ON/OFF button to restart operation.
Consult the concerned people who control the air conditioner.
" appear in the remote controller display?
Consult the concerned people who control the air conditioner.
If the timer can be set, or appears in the remote controller
display.
Turn off the power switch immediately and consult your dealer. Be
sure to provide the dealer with the model name and information that
appeared in the remote controller display.
stops. Wait approximately 3 minutes.
not be connected correctly. Have an installer check the connections.
(The colors of the male and female sections of the junction wire
connectors must match.)
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