When You Think That Trouble Has Occurred - Mitsubishi Electric MSZ-A09RV Operating Instructions Manual

WHEN YOU THINK THAT TROUBLE HAS OCCURRED

Question
The air conditioner
cannot be operated
for about 3 minutes
when re-started.
Cracking sound is
heard.
The room smells
strange.
The sound of water
flowing is heard.
The air flow direc-
tion changes during
operation.
Mechanical sound is
heard from the in-
door unit.
14
Answer (not a malfunction)
I This protects the air conditioner according to in-
structions from the microprocessor. Please wait.
I This sound is generated by the expansion/con-
traction of the front panel, etc. due to change in
temperature.
I The air conditioner sucks in an odor adhering to
the wall, carpet, furniture, cloth, etc. and blows it
out with the air.
I This is the sound of refrigerant flowing inside the
air conditioner.
I This is the sound of condensed water in the heat-
exchanger flowing.
I This is the sound of the heat-exchanger defrost-
ing.
I When the air conditioner is operated in the COOL
or DRY mode, if the operation continues with air
blowing down for 1 hour, the direction is auto-
matically set to level to prevent condensed wa-
ter from dropping.
I In the heating operation, if the output air tempera-
ture is too low or when defrosting is done, the
horizontal vane position is automatically set to
horizontal.
I This is the sound of the switch turning ON/OFF
the fan or compressor.
Question
Water leak from the
outdoor unit.
The sound as
burbling is heard.
Air does not blow
out quickly in the
heating operation.
The operation is
stopped for about
10 minutes in the
heating operation.
Hissing sound is
sometimes heard.
Answer (not a malfunction)
I During COOL and DRY operations, pipe or pipe
connecting sections are cool and this causes wa-
ter to condense.
I In the heating operation, the defrosting opera-
tion makes water frozen on the outdoor unit melt
and drip down.
I In the heating operation, water condensed on the
heat exchanger drips down.
I This sound is heard when the outside air is ab-
sorbed from the drain hose in turning on the
range hood or the ventilation fan and that makes
water flowing in the drain hose spout out.
This sound is also heard when the outside air
blows into the drain hose in case the outside wind
is strong.
I Please wait as the air conditioner is preparing to
blow out warm air.
I Defrosting of the outdoor unit is being done (De-
frosting operation).
Since this is completed with 10 minutes, please
wait. (When the external temperature is too low
and humidity is too high, frost is formed.)
I This is the sound when the flow of refrigerant
inside the air conditioner is switched.