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Model No.: AC-S10HGX2
Version: 1.0
TROUBLE SHOOTING GUIDE
PROBLEM PASSIBLE CAUSE
SUGGESTED SOLUTION
When set breaker to ON, it will
trip off at once.
Test the insulative resistance for
earthing to confirm whether unit is
current leakage or not.
Breaker
tripped or
fuse burnt out When turn on the unit, the
breaker will trip in a few
minutes.
Check the breaker and test the
resistance.
No power supply.
Check the circuit.
The power plug is not
connected well or poor
connected.
Check and insert the plug tightly.
Wrong wire connection
between the indoor unit and
outdoor unit.
According to the electric diagram to
check the wire and connect correctly.
Malfunction of wireless
remote control.
Check the wireless remote control.
Fuse of controller was burnt
out.
Replace the fuse of controller.
Whether the wire connection
between strong current board
and light current board of the
controller is firmed?
Please fix the connection wire firmly.
Air
conditioner
can not start
up.
Both indoor
unit and
outdoor unit
can’t start up.
Is the transformer output wire
connected well, is there
voltage output?
Please fix connection wire firmly
check output voltage.
Is the setting temp. suitable?
Adjust the setting temp.
Is COOL (HEAT) load suitable?
To check the pretested COOL
(HEAT) load.
Malfunction of 4-way valve
Replace the 4-way valve.
Short of refrigerant volume
Charge the refrigerant.
Malfunction of compressor.
Replace the compressor.
Malfunction
of refrigerant
flow
Short of valve gate flow
volume
To open the valve gate adequately.
Air filter were blocked.
Clean the filter
Short of air
volume
Fan speed was set too slow.
To set the fan speed to high or middle
speed.
Outdoor unit installation place is improper
Outdoor unit should be install in a
place with well ventilation and should
be installed the awning.
Indoor unit filter was blocked.
To clean the filter regularly.
The outdoor unit heat exchanger was blocked.
To clean the adhesive dust on heat
exchanger.
Leakage between compressor high pressure and
low pressure.
Replace the compressor.
Some part of capillary was blocked
Replace the capillary.
Refrigerant leakage.
Check leakage and charge refrigerant.
Poor COOL
(HEAT)
operation
Outdoor unit one-way valve was blocked.
Replace one-way valve.
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