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The indoor fan motor is burned or bre-
aks or has the heat protector malfun-
ction.
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.
The outdoor fan motor is damaged.
Replace the fan motor
Wrong connection
Make the correct connection based on the circuit
drawing.
In the cooling and
heating mode, the
compressor runs,
but the outdoor
fan does not run.
The outdoor fan capacitor is damaged.
Replace the fan capacitor
Malfunction of compressor Replace the compressor
Breakage of running capacitor of
compressor
Replace the capacitor
The voltage is too low or too high.
Manostat is recommended.
Wrong wire connection
Connect the circuit diagram correctly
When cooling or
heating, outdoor
fan runs,compr-
essor
doesn't run.
The protector itself has malfunction.
Use the multimeter to check whether the contact of
the compressor is on when it is not overheated. If it
is not on, then replace the protector
The refrigerant is not enough or is too
much.
Adjust the volume of the refrigerant
The capillary is blocked and the temp-
erature rises.
Replace the capillary
The compressor does not run smoothly
or is stuck. The air discharge valve is
damaged
Replace the compressor
The compressor is
too hot and leads to
the action of the
protector.
The protector itself has malfunction.
Replace the protector
The torque of the swing motor is not
enough
wrong connection
The swing fan
does not run.
The controller is damag
e
d
IC2003 is
damaged
, the swing relay can not close,
etc
First, check whether the connection is wrong. If no,
replace the parts
Troubleshooting
47