Coolmaster CM3000 - Troubleshooting Common Issues; Unit Not Operating; Poor Cooling Performance; Noisy Operation

CM3000
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10
Problem Check/Cause
Unit does not operate Is the air conditioner plugged in?
Is there a power failure
P1 error code • ashing. Drain the tank as shown in
Maintenance section.
Is the room temperature below the set temperature?
The air conditioner has little
effect
Ensure that the room being cooled is not too large for the
stated capacity of the air conditioner.
Is there direct sunshine? Remember to close curtains or
blinds.
More people in the room will generate more heat
Is there something in the room producing excessive heat?
Are windows or doors open?
Is the exhaust • tted correctly or obstructed? All exhaust air
needs to be completely removed from the room.
The air conditioner is not as cool
as it once was.
Are the air • lters dusty or dirty, restricting the air• ow?
Is the air inlet or outlet blocked.
Is the room temperature below the set temperature
The air conditioner is too noisy Is the air conditioner positioned unevenly, so as to create
vibration?
Is the • oor beneath the air conditioner uneven.
The compressor will not turn. It is possible that the overheat protection for the compressor is
on. Wait for it to reset.
Note: When changing between different modes (cooling to fan
or dry mode etc) the compressor will turn off. A 3 minute delay
will occur before the compressor will turn on again.
Never try to dismantle the air conditioner yourself.
In case of problems that cannot be resolved using the above guide, or if service on your
air conditioner is required, please contact your dealer or designated service agent.
TROUBLESHOOTING
Error codes
E1 - Room temperature sensor error. Disconnect the air conditioner and reconnect. If
error repeats, call for a service agent.
E2 - Evaporator temperature sensor error. Disconnect the air conditioner and reconnect.
If error repeats, call for a service agent.
E4 - Display panel communication error. Disconnect the air conditioner and reconnect. If
error repeats, call for a service agent.
P1 - Water tank is full. Drain the air conditioner as shown in Maintenance section.