When You Think That Trouble Has Occurred - Mitsubishi Electric MS-GE50VB Notice D'utilisation

W
HEN YOU THINK THAT TROUBLE HAS OCCURRED
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
Indoor Unit
The unit cannot be operated. • Is the breaker turned on?
• Is the power supply plug connected?
• Is the ON timer set?
The unit cannot be operated • This protects the unit according to instruc-
for about 3 minutes when tions from the microprocessor. Please
restarted. wait.
The fan stops during the DRY • In DRY operation, the unit operates using the
operation. same refrigerant circuit as in COOL opera-
tion. DRY operation time has to be reduced
in order to lower humidity without much room
temperature decreasing. So the compres-
sor sometimes stops, and at the same time
the indoor fan stops. This prevents water
condensed on the heat exchanger from
evaporating again.
Mist is discharged from the air • The cool air from the unit rapidly cools mois-
outlet of the indoor unit. ture in the air inside the room, and it turns
into mist.
The swing operation of the • This is for the swing operation of the HORI-
HORIZONTAL VANE/VERTI- ZONTAL VANE/VERTICAL VANE to be
CAL VANE is suspended for performed normally.
a while, then restarted.
The air flow direction changes • When the unit is operated in COOL or DRY
during operation. mode, if the operation continues with air
The direction of the horizontal blowing down for 0.5 to 1 hour, the direction
vane cannot be adjusted with of the air flow is automatically set to horizon-
the remote controller. tal position to prevent water from condensing
and dripping.
• In the heating operation, if the air flow 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 • Defrosting of the outdoor unit is being
about 10 minutes in the heat- done.
ing operation. 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 • These models are equipped with an auto re-
itself when the main power start function. When the main power is turned
is turned on, though it isn't off without stopping the unit with the remote
operated with the remote controller and is turned on again, the unit
controller. 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"
Outdoor Unit
Water leaks from the outdoor • During COOL and DRY operations, pipe or
unit. 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 • In the heating operation, vapor generated
from the outdoor unit. by the defrosting operation looks like white
smoke.
All manuals and user guides at all-guides.com
Explanation & Check points
Page 6
page 4 .
Symptom
Remote controller
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 Page 3
does not respond to the • Are any buttons on the remote controller of
remote control signal. other electric appliances being pressed?
Does not cool or heat
The room cannot be cooled • Is the temperature setting appropriate?
or heated sufficiently. Page 4
• 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.
Air does not blow out soon in • Please wait as the unit is preparing to blow
the heating operation. out warm air.
Airflow
The air from the indoor unit • Are the filters clean?
smells strange. • 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.
Sound
Cracking sound is heard. • This sound is generated by the expansion/
contraction of the front panel, etc. due to
change in temperature.
"Burbling" sound 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 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.
Mechanical sound is heard • This is the switching sound in turning on/off
from the indoor unit. the fan or the compressor.
The sound of water flowing • This is the sound of refrigerant or condensed
is heard. water flowing in the unit.
In the following cases, stop using the air conditioner and consult your
dealer.
• When water leaks or drips from the indoor unit.
• When the left 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 fluorescent lamp (inverter-type fluorescent lamp, etc.) is used.
• Operation of the air conditioner interferes with radio or TV reception. An ampli-
fier may be required for the affected device.
• When an abnormal sound is heard.
Explanation & Check points
Page 3
Page 7
Page 7
En-8