Daikin SUPER MULTI NX G Series Service Manual

Troubleshooting for Outdoor Unit SiUS12-928_B
157 Service Diagnosis
Troubleshooting 18 class
Check No.01
Refer to P.191
Check No.12
Refer to P.194
(R17365)
Caution
YES
NG
NO
NO
YES
YES
YES
NO
YES
NO
NO
YES
NO
NO
YES
∗ Discharge pipe thermistor
∗ Indoor or outdoor heat exchanger thermistor
∗ Room temperature thermistor
∗ Outdoor temperature thermistor
Check for refrigerant shortage.
Change for a specified amount of
fresh refrigerant.
Replace the thermistor(s) in
position.
Open the stop valve.
Repair the pipe flare or
replace the union.
Check the harness for
loosening.
Correct it as required. Also
replace the cracked pipe.
Check the pipes for
improper contact. Correct
them as required. Also
replace the cracked pipe.
Replace the outdoor
electronic expansion valve.
Replace the defective
thermistor(s).
Completed.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
OK
NO
YES
Replace the compressor.
Completed.
Any thermistor
disconnected?
Stop valve closed?
Oil oozing at relay
pipe connections?
Oil oozing at internal
piping?
Check No. 12
Outdoor electronic
expansion valve
functioning?
Refrigerant shortage error
again?
Check No. 01
Check the thermistors.
Replace the outdoor unit PCB.
Error again?
Compressor vibrating
too much?
OK
NG
CT is in trouble. (Refer to
H8.)
Check the CT.

Daikin SUPER MULTI NX G Series Specifications

General

Brand	Daikin
Model	SUPER MULTI NX G Series
Category	Air Conditioner
Language	English