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The indoor fan motor is burned or breaks
or has the heat protector malfunction.
Replace the fan motor or the defective part.
The built-in heat protector of the motor
breaks frequently because the motor
is abnormal.
Replace the fan motor
Wrong connection
Make the correction connection based on the
circuit drawing.
The fan does not
run when it is set
to supply air.
The fan capacitor has open circuit or is
damaged.
Replace the fan capacitor of the same type
and same specification.
Replace the fan motor
The outdoor fan motor is damaged.
Wrong connection
Make the correct connection based on the
circuit drawing
Replace the fan capacitor
Replace the compressor
The outdoor fan capacitor is damaged.
Malfunction of compressor
Breakage of running capacitor of
compressor
Replace the capacitor
The voltage is too low or too high.
Manostat is recommended.
Connect the circuit diagram correctly
Wrong wire connection
The protector itself has malfunction.
Use the multimeter to check whether the con-
tact of the compressor is on when it is not
overheated. If it is not on, then replace the pro-
tector
The refrigerant is not enough or is too
much.
Adjust the volume of the refrigerant
The capillary is blocked and the tem-
perature rises.
Replace the capillary
Replace the compressor
Replace the protector
The protector itself has malfunction.
The compressor does not run
smoothly or is stuck. The air dis-
charge valve is damaged
The compres-
sor is too hot
and leads to the
action of the
protector.
The swing fan
does not run.
The torque of the swing motor is not
enough
Wrong connection
First, check whether the connection is
wrong. If no, replace the parts
The controller is damaged(IC2003 is
damaged, the swing relay can not
close, etc)
The compres-
sor is too hot
and leads to
the action of the
protector.
In the cooling and
heating mode, the
compressor runs,
but the outdoor fan
does not run.