Si10-417
Troubleshooting
Service Diagnosis
59
Trouble
shooting
Check
No.5-2
Refer to
P.156
Check No.6
Refer to
P.157
Check No.11
Refer to
P.162
Correct.
Reconnect.
Replace the four way
valve coil.
Replace the outdoor
unit PCB.
Reconnect in position.
Replace a defective
thermistor.
Refer to the refrigerant
line check procedure.
Replace the four way
valve (defective or
dust-clogged).
(R3040)
Four way
valve coil disconnected
(loose)?
YES
NO
NO
NO
C
heck No.
11
Check the refrigerant line.
l
Insufficient
gas
l
Water mixed
l
Stop valve
defective
YES
YES
Harness
out of connector?
NO
YES
Disconnect
the harness from
the connector.
Resistance between
harnesses about
3k
Ω
±0.5k
Ω
?
Malfunctioning
Malfunctioning
Malfunctioning
Functioning
Functioning
Functioning
C
heck No.
5-2
Check the four way valve
switching
output.
Any thermistor
disconnected?
C
heck No.
6
Check the thermistors.
Check the continuity of the four
way valve coil and harness.
Caution
Be sure to turn off power switch before connect or
disconnect connector, or parts damage may be occurred.
Si10-417.fm Page 59 Wednesday, September 22, 2004 6:38 PM
