Specifications

SiBE04-624 Troubleshooting
Service Diagnosis 189
Troubleshooting
Check No.2
Refer to P.202
Check No.17
Refer to P.209
NO
YES
Open the stop valve.
Repair flared portion of
piping or replace square
union.
Check the power transistor
harness for looseness.
Correct it as required.
Replace cracked pipe if
any.
Check the piping for
improper contact. Correct
as required.
Replace cracked pipe if
any.
Replace the electronic
expansion valve.
Replace the heat
exchanger.
Replace the defective
thermistor. (room
temperature, outdoor air,
indoor or outdoor heat
exchanger thermistor)
Replace the compressor.
Procedure complete.
Procedure complete.
(R3446)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is the stop
valve opened?
Check gas leakage.
Oil oozing at relay pipe
connections?
YES
NO
NO
Oil oozing at
internal piping?
YES
NO
YES
Check No.17
Check electronic expansion
valve?
Compressor
vibrates too much?
NO
Is insufficient gas
fault repeated?
Check No.2
Thermistor check
OK
NG
YES
Does
refrigerant heat
exchange drift occur?
Is insufficient gas
fault repeated?
NO
NO
NO
YES
YES
YES
Replace with the specified
quantity of refrigerant
Replace the outdoor unit PCB