Mitsubishi Electric MSZ-FH09NA Manual De Instrucciones página 13

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, i • Is the breaker turned on?
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 HORI-
ZONTAL VANE is suspended for a
while, then restarted.
When SWING is selected in
COOL/DRY/FAN mode, the
lower horizontal vane does not
move.
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 controller.
The two horizontal vanes touch
each other. The horizontal
vanes are in an abnormal posi-
tion. The horizontal vanes do
not return to the correct "close
position".
The indoor unit discolors over
time.
The indoor unit which is not
operating becomes warm and a
sound, similar to water flowing,
is heard from the unit.
When heating operation is
selected, operation does not
I,
i.
i.
i.
Is the power supply plug connected?
Is the ON timer set? |
Are the horizontal vane and the vertical vane
installed correctly?
Is the fan guard deformed?
When the breaker is turned on, the horizontal
vanes' position will be reset in about a minute.
After the reset has completed, the normal hori-
zontal vanes' operation resumes. The same is
true in the emergency cooling operation.
This protects the unit according to instructions
from the microprocessor. Please wait.
The coot air from the unit rapidly cools moisture
in the air inside the room, and it turns into mist.
This is for the swing operation of the HORIZON-
TAL VANE to be performed normally.
It is normal that the lower horizontal vane does
not move when SWING is selected in COOL/
DRY/FAN mode.
i" 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 tow or when defrosting is being
done, the horizontal vane is automatically set
to horizontal position.
i • 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.)
i" These models are equipped with an auto
restart 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" _L_.
Perform one of the following:
i" Turn off and on the breaker. Make sure the horizon-
tal vanes move to the correct "close position".
i • Start and stop the emergency cooling operation
and make sure the horizontal vanes move to the
correct "close position".
i " Although plastic turns yellow due to the influence
of some factors such as ultraviolet light and
temperature, this has no effect on the product
functions.
i • A small amount of refrigerant continues to flow
into the indoor unit even though it is not operat-
ing.
i " When operation is started during defrosting of
outdoor unit is done, it takes a few minutes (max.
start right away. _ 10 minutes) to blow out warmair:
i" When the outside temperature is tow during
cooling operation, the fan operates intermittently
to maintain sufficient cooling capacity.
The fan of the outdoor unit does
not rotate even though the com-
pressor is running. Even if the
fan starts to rotate, it stops soon.
Water leaks from the outdoor
unit.
White smoke is discharged from
the outdoor unit.
i " 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.
i" In the heating operation, vapor generated by the
defrosting operation looks like white smoke.
The display on the remote • Are the batteries exhausted?
controller does not appear or it • Is the polarity (+, -) of the batteries correct?
is dim. The indoor unit does not
respond to the remote control • Are any buttons on the remote controller of other
signal, electric appliances being pressed?
The room cannot be cooled or • Is the temperature setting appropriate?
heated sufficiently.
• Is the fan setting appropriate? Please change
fan speed to High or Super High.
• 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?
• It may take a certain time to reach the setting
temperature or may not reach that depending on
the size of the room, the ambient temperature,
and the like.
The room cannot be cooled • When a ventilation fan or a gas cooker is used
sufficiently, in a room, the cooling toad increases, resulting
in an insufficient cooling effect.
• When the outside temperature is high, the cooling
effect may not be sufficient.
The room cannot be heated • When the outside temperature is low, the heating
sufficiently, effect may not be sufficient.
Air does not blow out soon in • Please wait as the unit is preparing to blow out
the heating operation, warm air.
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.
Cracking sound is heard. • This sound is generated by the expansion/con-
traction 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 the
from the indoor unit. fan or the compressor.
The sound of water flowing is • This is the sound of refrigerant or condensed
heard, water flowing in the unit.
Hissing sound is sometimes • This is the sound when the flow of refrigerant
heard, inside the unit is changed.
Weekly timer does not operate • Is the ON/OFF timer set?
according to settings. • Transmit the setting information of the weekly
timer to the indoor unit again. When the infor-
mation is successfully received, a long beep will
sound from the indoor unit. If information fails to
be received, 3 short beeps will be heard. Ensure
information is successfully received.
• When a power failure occurs and the main power
turns off, the indoor unit built-in clock will be
incorrect. As a result, the weekly timer may not
work normally.
Be sure to place the remote controller where
the signal can be received by the indoor unit.
• Is the weekly timer set? The unit starts/stops the opera-
tion by itself.
In the following cases, stop using the air conditioner and consult your dealer.
. When water leaks or drips from the indoor unit.
. When the operation indicator tamp blinks. Except for when the lamp of a multi
unit blinks while the unit is on standby.
. 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.
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