Chigo CS-25V3A-MA114A, Service Manual

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37
H
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Usual failure analysis
No. Fault The possible reason Solution
01 Not cooling well.
The room is too large ;the
window or door is not closed.
Close the window and door
Too many persons or heat
source in room.
Reduce the heat source.
The installed position of outdoor
unit isn’t good. Have insolation
or not good in ventilation.
Reinstall the unit.
The installed position of indoor
unit isn’t good. Bad in air
circulation.
Reinstall the unit.
The air filter is dirty or blocked. Clean this air filter.
The system blocked. Check capillary tube, strainer
etc. repair or replace them.
The refrigerant leakage. refill up refrigerant after
checking the
leak source
.
The set temperature is too
high .
reduce the set temperature.
The condenser blocked by dust
or others.
clean the dust and dirt.
Too much quantity of
refrigerant.
take the redundant refrigerant
out.
Blockage in airinlet or air outlet. Clear the obstacles.
Air mixed in refrigerant. refill the refrigerant.
High outdoor temperature.
The indoor or outdoor fan motor
is running slow
Change this indoor or outdoor
fan motor
The compressor suction or
venting capability is very poor
Change this compressor
Four-way valve slight mixes up replace it
other
02 Can not cool.
The fan doesn’t run (motor or
capacitor of fan failed, Poor
contact for the line of capacitor,
line fault
. The motor relay and
drive circuit is fault)
Check. Repair and replace.
The compressor doesn’t
work(the voltage is too
low ,overload,
wiring error
. The
compressor failed. The
capacitor of compressor failed.
the capacity of
electric fence
isn’t
enough. )
Check. Repair and replace.