Specifications

SiBE12-519 Troubleshooting
Service Diagnosis 143
Troubleshooting
Check No.04
Refer to P.171
Check No.06
Refer to P.173
Check the wiring and piping.
Check No. 04
Check the electronic expansion valve.
Correct the wiring or piping
error.
Replace the defective EV or
coil.
Replace the heat exchanger
thermistor.
Replace the room
temperature thermistor.
Replace the room
temperature thermistor or
indoor unit heat exchanger
thermistor.
Do the vacuum-drying.
Replace the indoor unit PCB.
(R4760)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Wiring or piping out of spec?
YES
NO
NO
YES
NO
YES
NO
YES
YES
NO
Error again?
Normal?
Thermistor as specified
in its characteristic
chart?
Thermistor as specified
in its characteristic
chart?
Change the gas to let moisture out
of the unit (after drawing a
vacuum).
Check No. 06
Check the outdoor unit heat
exchanger thermistor.
Check No. 06
Check the room temperature
thermistor.