Daikin SUPER MULTI NX CTXS07JVJU Service Manual page 179

Troubleshooting for Outdoor Unit
Troubleshooting
Check No.01
Refer to P.191
Check No.13
Refer to P.195
Check No.14
Refer to P.195
171
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
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 1000 ~ 2000 W?
YES
Check No.
13
Check the four-way valve
switching output.
OK
Any thermistor
disconnected?
NO
Check No. 01
Check the thermistors.
OK
Check No. 14
Check the refrigerant line.
OK
YES
YES
NO
NG
YES
NG
NG
* Water mixed
* Stop valve
SiUS12-928_B
Correct the four-way valve
coil.
Reconnect the harness.
Replace the four-way valve
coil.
Replace the outdoor unit
PCB.
Reconnect the thermistor(s)
in position.
Replace a defective
thermistor(s).
Refer to the refrigerant line
check procedure.
Replace the four-way valve.
(defective or dust-clogged)
(R15824)
Service Diagnosis