PROBLEM POSSIBLE REASON TROUBLE SHOOTING
The unit doesn’t work
at all.
1. Bad connection of the main plug (Part
#211).
2. Humidistat (Part #208) breaks down.
3. Water tank (Part #102) not positioned well.
4. Micro switch (Part #207) springs off.
1. Replug.
2. Check and repair or replace.
3. Re-place the water tank.
4. Check, repair or replace.
Compressor works,
but the fan doesn’t.
1. Bad wires connection.
2. Speed switch (Part #209) breaks down.
3. Fan motor (Part #202) not work at all.
4. Fan blade (Part #122) is stuck.
1. Re-connect & fasten them
firmly.
2. Check, repair or replace.
3. Replace.
4. Check and adjust.
Compressor doesn’t
work, only fan to
circulate the air.
1. Bad wire connection.
2. Overload protector of compressor breaks
down.
3. Starting relay of compressor breaks down.
4. Humidistat (humidity controller) breaks
down.
5. Compressor breaks down.
6. The unit is on the mode of “Anti-Frost” .
7. Anti-frost p.c. board breaks down.
1. Re-connect & fasten them
firmly.
2. Check and repair or replace.
3. Check and repair or replace.
4. Check and repair or replace.
5. Check and repair or replace.
6. Normal condition.
7. Check and repair or replace.
Noise too loud
1. Fan blades scratch the surrounding parts.
2. Fan Motor makes loud noise.
3. Fan motor screws get loose.
4. Compressor screws get loose.
1. Check and position Fan
blade well.
2. Repair/replace Fan motor.
3. Re-fasten screws.
4. Re-fasten screws.
Frost (Ice) formed
on the surface of
Evaporator.
1. Insufficient refrigerant.
2. Anti-frost p.c. board is out of function
(below 16°C).
3. Dusty filer.
1. Find out and repair the
leakage, then recharge the
unit.
2. Check and repair or replace.
3. Clean the filter.
2
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