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The fan does not
run when it is set to
supply air.
When unit is cooling
or heating, the
compressor runs
but outdoor fan
doesn't run
When cooling or
heating, outdoor fan
runs, compressor
doesn't run.
Protection is
activated due to an
overheat
compressor.
Swing blade does
not rotate.
The indoor fan motor is burned or breaks or has
the heat protector malfunction.
The built in heat protector in the motor is tripped
off frequently due to overheat as the result of
abnormal motor operation.
Wrong connection
The fan capacitor has open circuit or is damaged.
The outdoor fan motor is damaged.
Wrong connection
The outdoor fan capacitor is damaged.
Compressor malfunction
Breakage of running capacitor of compressor
The voltage is too low or too high.
Wrong connection
Malfunction of the protector
Too much coolant
The capillary is blocked and the sucking
temperature is increased.
The compressor does not run normally,
jammed or blocked. The air discharge valve is
damaged.
Malfunction of the protector
Inadequate torque of swing motor
Wrong connection
The controller is damaged(IC2003 is damaged,
the swing relay can not a close）
—102—
Replace the fan motor or the defective part.
Replace the fan motor
Make the correct connection based on the circuit
drawing.
Replace the fan capacitor with the same model and
specification
Replace the fan motor
Make the correct connection based on the circuit
drawing.
Replace the fan capacitor
Replace the compressor
Replace the capacitor
Manostat is recommended.
Make the correct connection based on the circuit
drawing.
Check with a multimeter and see if the contacts
conduct when the compressor is not overheated. If
not, replace the protector.
Adjust the volume of the refrigerant
Replace capillary
Replace the compressor
Replace the protector
Firstly check if the wire connection is correct; if not,
replace relevant element at malfunction point.
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