Troubleshooting
Si10-417
36
Service Diagnosis
Trouble
shooting
Check No.4
Refer to
P.151
Check No.6
Refer to
P.157
Caution
Be sure to turn off power switch before connect or
disconnect connector, or parts damage may be occurred.
Check the wiring and piping.
Check No. 4
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.
(R3039)
Wiring or
piping out of spec?
YES
NO
NO
YES
YES
YES
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. 6
Check the outdoor unit heat
exchanger thermistor.
Check No. 6
Check the room temperature
thermistor.
NO
NO
NO
YES
Si10-417.fm Page 36 Wednesday, September 22, 2004 6:38 PM
