1-11-2-1-10
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APPENDIX
Troubleshooting
If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work
properly, contact your dealer or a service center.
Indoor unit
Symptom
Cause
Noise
Sound like streaming water during
operation or after operation.
Sound of refrigerant liquid
fl
owing inside unit
Sound of drainage water through drain pipe
Cracking noise during operation or
when operation stops.
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Odor
Discharged air is smelled during
operation.
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in the air conditioner and its air is discharged.
Unit inside is dusty. Consult your dealer.
Dewdrop
Dewdrop gets accumulated near
air discharge during operation.
Indoor moisture is cooled by cool wind and accumulated by dewdrop.
Fog
Fog occurs during operation in
cooling mode.
(Places where large amounts of
oil mist exist at restaurants.)
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During defrost operation
Fan is rotating for a while even though operation
stops.
Fan rotating makes operation smoothly.
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settings.
Wind-direction changes while operating.
Wind-direction setting cannot be made.
Wind-direction cannot be changed.
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W
horizontal wind
fl
ow is made automatically.
Flap position is occasionally set up individually.
When wind-direction is changed, flap operates
several times and stops at designated position.
When wind-direction is changed, flap operates after searching for
standard position.
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At the initial high-speed operation, the fan may
sometimes rotate faster (for 3 to 30 minutes) than
the setting speed.
This is for operation check in order to confirm whether the fan motor
rotation is within use range.
Check Before Requiring Services
Symptom
Cause
Remedy
Air conditioner does not run
at all although power is turned
on.
Power failure or after power failure
Press ON/OFF operation button on remote
controller again.
Operation button is turned off.
Switch on power if breaker is turned off.
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dealer without turning it on.
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Poor cooling or heating
performance.
Air intake or air discharge port of indoor
and outdoor units is clogged with dust
or obstacles.
Remove dust or obstruction.
Wind speed switch is set to “Low”.
Change to “Medium” or “High”.
Improper temperature settings
See “ Tips for Energy Saving”
Room is exposed to direct sunlight in
cooling mode.
Doors and /or windows are open.
Too much heat sources in room in
cooling mode.
Use minimum heat sources and in a short time.
Too many people in room in cooling
mode.
Reduce temperature settings or change to
“Medium” or “High”.
If your air conditioner still does not work properly although you checked the points as described above, first stop the operation
and turn off the power switch. Then contact your dealer and report the serial number and symptom. Never repair your air
conditioner by yourself since it is very dangerous for you to do so.
on page 1-11-2-1-11.
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