Loading ...
Loading ...
Loading ...
10 31-5000473 Rev. 0
ENGLISH
Please check the following before contacting a repair service.
Under the following circumstances, immediately stop the operation, disconnect the manual supply switch and contact the
after-service personnel.
• When control buttons are inoperable.
• When circuit breakers trip repeatedly.
• When the outdoor unit is blocked with ice or foreign objects.
• When the system fails to restart after power reset.
• When system operates abnormally.
FAULT CHECKUP
All of these are
not problems.
Symptoms Reasons
Running water noise Running water sound can be heard during starting operation, during operation or immediately
after stopping operation. When it starts for 2-3 minutes, the sound may become louder, which is
the flowing sound of refrigerant or the draining sound of condensate water.
Cracking sound During operation, the air conditioner may make a crackling sound, which is caused from the
temperature changes of the heat exchanger.
Unpleasant odor in outlet air The terrible smell may be caused from organic materials from walls, carpeting, furniture,
cigarette smoke and cosmetics that collect on the outside of the refrigerant coil.
Flashing operating indicator When switching it on again after power failure, turning on the manual power switch will show the
operating indicator flashes.
Waiting indicator Displayed when the control is set it to the cooing or heating mode and the current mode of
operation is opposite to the requested setting.
Idle indoor unit still has sound
of refrigerant flowing and
radiating temperatures
Some refrigerant flow is allowed to pass through idle indoor units to prevent oil and refrigerant from
blocking the metering valve. This flow may result in some radiating temperature and noise.
Clicking sound when unit
comes on
The sound is made due to the expansion valve resetting when the unit is powered on.
Please make
another ckeck.
Start or Stop working
automatically
Check if it is set to Timer - ON and Timer - OFF.
Failure to work Check if there is a power failure.
Check if the supply fuse and breaker are disconnected.
Check if the unit is displaying any faults.
Check if wait symbol is displayed. This is due to other indoor units connected to the same outdoor unit
are running in the opposite mode. System cannot heat and cool simultaneously.
Bad cooling & heating effects The sound is made due to the expansion valve resetting when the unit is powered on.
Check to be sure doors and windows are closed.
Check for dirty or blocked air filter.
Make sure the fan speed is not too low.
Be sure the temperature control is set correctly.
Loading ...
Loading ...
Loading ...