Daikin Super Multi NX B series User Manual

Troubleshooting Si12-308
190 Service Diagnosis
Troubleshooting
Check No.5
Refer to P.209
Check No.6
Refer to P.210
Check No.11
Refer to P.213
Correct.
Reconnect.
Replace the four-way valve
coil.
Replace the outdoor unit
PC board.
Reconnect in position.
Replace a defective
thermistor.
Refer to the refrigerant line
check procedure.
Replace the four-way valve
(defective or dust-clogged).
(Q0353)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Four-way valve coil
disconnected (loose)?
YES
YES
NO
Functioning
NO
Check No. 11
Check the refrigerant line.
Malfunctioning
l Water mixed
l Shut-off valve defective
Harness out of connector?
NO
YES
Disconnect the
harness from
the connector.
Resistance between
harnesses about
1500 ohms?
Malfunctioning
Functioning
Check No. 5
Check the four-way valve
switching output.
YES
NO
Any thermistor disconnected?
Malfunctioning
Functioning
Check No. 6
Check the thermistors.
Check the continuity of the four-
way valve coil and harness.

Daikin Super Multi NX B series Specifications

General

Brand	Daikin
Model	Super Multi NX B series
Category	Air Conditioner
Language	English