Mitsubishi Mr.Slim MSZ-FE09NA Operating Instructions Manual page 11

Even if these items are checked, when the unit does not recover from the
trouble, stop using the air conditioner and consult your dealer.
The unit cannot be operated.
The horizontal vane does not
move.
The unit cannot be operated
for about 3 minutes when
restarted.
Mist is discharged from the air
outlet of the indoor unit.
The swing operation of the
HORIZONTAL VANE is
suspended for a while, then
restarted.
The airflow direction changes
during operation.
The direction of the horizontal
vane cannot be adjusted with
the remote controller.
The operation stops for about
10 minutes in the heating
operation.
The unit starts operation by
itself when the main power is
turned on, but hasn't received
sign from the remote control-
ler.
. Is the breaker turned on?
. Is the power supply plug connected?
• Is the ON timer set?
. Are the horizontal vane and the vertical vane
installed correctly? _
. This protects the unit according to instruc-
tions from the microprocessor. Please
wait.
. The cool air from the unit rapidly cools mois-
ture in the air inside the room, and it turns
into mist.
. This is for the swing operation of the HORI-
ZONTAL VANE to be performed normally.
. 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 airflow is automatically set to horizontal
position to prevent water from condensing
and dripping.
. In the heating operation, if the airflow tem-
perature is too low or when defrosting is be-
ing done, the horizontal vane is automatically
set to horizontal position.
. Outdoor unit is in defrost.
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.)
. 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".
The indoor unit which is not
operating becomes warm and
a sound, similar to water flow-
ing, is heard from the unit.
When heating operation is
selected, operation does not
start right away.
. A small amount of refrigerant continues to
flow into the indoor unit even though it is
not operating.
• When operation is started during defrosting
of outdoor unit is done, it takes a few minutes
(max. 10 minutes) to blow out warm air.
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.
Water leaks from the outdoor
unit.
. When the outside temperature is low dur-
ing cooling operation, the fan operates
intermittently to maintain sufficient cooling
capacity.
. 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
operation makes ice forming on the outdoor
unit melt and drip down.
White smoke is discharged • In the heating operation, vapor generated
]from the outdoor unit. by the defrosting operation looks like white
smoke.
The display on the remote . Are the batteries exhausted? |
controller does not appear . Is the polarity (+, -) of the batteries correct?
or it is dim. The indoor unit
] does not respond to the . Are any buttons on the remote controller of
remote control signs!: • other electric app!iances being pressed?
] The room cannot be cooled . Is the temperature setting appropriate?
] or heated sufficiently.
The room cannot be cooled
sufficiently.
The room cannot be heated
sufficiently.
l Air does not blow out soon in
The air from the indoor unit
smells strange.
Cracking sound is heard.
l "Burbling" sound is heard.
] Mechanical sound is heard
from the indoor unit.
The sound of water flowing
]is heard.
Hissing sound is sometimes
] heard.
. Is the fan setting appropriate? Please
change fan speed to higher setting.
. Are the filters clean?
. Is the fan or heat exchanger of the indoor unit
clean?
. Are there any obstacles blocking the air inlet
or outlet of the indoor or outdoor unit?
. Is a window or door open?
. When a ventilation fan or a gas cooker is
used in a room, the cooling load increases,
resulting in an insufficient cooling effect.
• When the outside temperature is high, the
cooling effect may not be sufficient.
. When the outside temperature is low, the
heating effect may not be sufficient.
. Please wait as the unit is preparing to blow
out warm air.
. Are the filters clean?
. Is the fan or heat exchanger of the indoor unit
clean?
. The unit may suck in an odor adhering to the
wall, carpet, furniture, cloth, etc. and blow it
out with the air.
. This sound is generated by the expansion/
contraction of the front panel, etc. due to
change in temperature.
. 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 flowing 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.
. This is the switching sound in turning on/off
the fan or the compressor.
• This is the sound of refrigerant or condensed
water flowing in the unit.
. This is the sound when the flow of refrigerant
inside the unit is changed.
In the following cases, stop using the air conditioner and consult your dealer.
. When water leaks or drips from the indoor unit.
. When the POWER lamp blinks.
. When the breakertrips frequently.
. The remote control signal is not received in a room where an electronic ON/OFF
type fluorescent lamp (inverter-type fluorescent lamp, etc.) is used.
. Operation of the air conditioner interferes with radio or TV reception. An ampli-
tier may be required for the affected device.
. When an abnormal sound is heard.
II
En-lO