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Trouble shooting
Trouble shooting
The circuit breaker trip
off( Or fuse is melt)
When circuit breaker is
set to "ON", will trip off
at once.
Earth, tested insulated
to confirm whether it is
electricity leakage or not.
When turn the unit to
"ON", thebreaker trip off
in a few minutes.
Check the breaker,
test the resistance
of short circuit.
No power supply Check power supply circuit
Wireless remote control
sending malfunction
Check the wireless
remote control
The plug is not inserted
well or poor connection.
Check and insert the plug
fix it firmly.
Wrong wire connection
between indoor and out-
door unit.
According to the
electric diagram
to check the cir-
cuit and correctly connect.
The fuse of controller is
melt
Replace the fuse of
controller
Both indoor unit and
outdoor unit can not
start.
Is the wire connection
current plates fixed
of strong or light
well
Please fix the connection
wire firmly.
The setting temp.
is not suitable.
Adjust the setting temp.
Is the output wire of
put.
Please fix the connection
wire, and check the output
voltage.
Is cool (heat) over load
suitable.
Please check the pretested
cool(heat) load
Refrigerant flowing
malfunction
Malfunction in four-way
valve
Refrigerant volume
is not enough
Compressor malfunction
The flow volume
is not enough
Replace the 4-way valve
Charge the refrigerant
Change the compressor
To open the valve
adequately
Air conditioner can not start
cool (Heat) is poor
firmed or is there any out-
transformer