Daewoo DSA-099L, Service Manual, Page: 17 / 28

Indoor unit fan stops
for about 10
minutes during
heating.
It is defrosting of the outdoor unit coil.It should
complete this process in about 10 minutes at
most.( It freezes when outdoor temperature is
low and humidity is high. )
Issues cracking sounds
The friction sounds caused by expansion and
contraction of front panel resulting from temp-
erature changes.
You can hear the
sound of running
water
It is the sound of expanding refrigerant inside
the air conditioner.
Sound of accumulated water dropping on the
heat-exchanger.
Melting sounds of frost on heat-exchanger.
Indoor unit issue
pooosh
sound and click
sound.
Click sound of fan or compressor when switc-
hing ON/OFF.
pooosh sound of refrigerant inside the air
conditioner.
There is odd odor
in the air that air
conditioner blow out.
Air conditioner recycles should have absorbed
odors from wall, carpet , furniture and cloth
closet out into the air.
Outdoor unit leaks
water.
During cooling, connecting pipe or pipe conn-
ector is cooled to form condensates.
During heating or defrosting , melting water
and water vapor will run out.
During heating, water on heat-exchanger will
drop.
Is there a fault ?
Fault analysis
Troubleshooting
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