Daikin AT12BV1LS Pocket Manual page 62

Si10-417
Trouble
shooting
Check
No.5-2
Refer to
P.156
Check No.6
Refer to
P.157
Check No.11
Refer to
P.162
Service Diagnosis
Be sure to turn off power switch before connect or
Caution disconnect connector, or parts damage may be occurred.
Four way
valve coil disconnected
(loose)?
NO
Harness
out of connector?
NO
Check the continuity of the four
way valve coil and harness.
Disconnect
the harness from
the connector.
Resistance between
harnesses about
3kΩ±0.5kΩ?
YES
Check No.
Check the four way valve
switching
output.
Functioning
Any thermistor
disconnected?
NO
Check No.
Check the thermistors.
Functioning
Check No.
Check the refrigerant line.
Functioning
YES
YES
NO
5-2
Malfunctioning
YES
Malfunctioning
6
11
Malfunctioning
l
Insufficient
gas
l
Water mixed
l
Stop valve
defective
Troubleshooting
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)
61