Cooper & Hunter CH-D008WDN7-20LD, Owner'S Manual, Page: 18 / 66

Troubleshooting
● Not all the following problems are malfunctions.
● Problem of water leakage
Problem Possible Causes
Controls can not be set.
● Unit is operating in an area where temperature
is higher than 3 2 °C or lower than 5°C.
● Bucket is full.
Noise suddenly rises during
operation.
● Noise will rise if compressor has just started.
● Power supply problem.
Humidity does not drop.
●
● Doors are open.
● There might be some device producing vapor in
the room.
Little or no effect in
dehumidifyng
● Room temperature is too low.
● Humidity level may be improperly set.
● If unit is operating in a room where temperature
is from 5 to 15 °C, it will start to defrost automati-
cally. Compressor will stop for a brief period of
time(fan will operate in high fan speed).
normal operation.
emitted has musty-odor.
● Due to temperature rising of heat exchanger, the
air may have some strange smell at the beginning.
Unit has noises.
● There might be some noise if unit is operating on
Swooshing sound is heard. ●
Problem Possible Causes Solution
When using drain
hose, there is water
in the bucket.
● Examine the drainage joint. ● Connect the drainage joint
well.
● Drain hose is not correctly
installed.
● Clear the obstacle from the
drain hose.
● Drain hose is not correctly
installed.
● Remove the drain hose and
replace it. Be sure that the
hose is correctly installed.
15