SiUS12-928_A
Troubleshooting
Service Diagnosis
144
Troubleshooting
18 class
Check No.04
Refer to P.150
Check No.06
Refer to P.152
(R11901)
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
YES
NG
NO
OK
NG
YES
YES
NO
OK
NO
YES
NO
NO
YES
NO
YES
NO
NO
YES
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 outdoor unit PCB.
Check No. 04
Electronic expansion valve
functioning?
Replace them
in position.
CT in trouble (refer to
H8
).
Replace the compressor.
Repair the pipe flare or
replace the union.
Check the power transistor
harness for looseness.
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 electronic
expansion valve.
Replace the room
temperature thermistor,
outdoor temperature
thermistor, or the indoor or
outdoor heat exchanger
thermistor.
Completed.
Completed.
Refrigerant shortage error
again?
Oil oozing at internal
piping?
Check the CT.
Compressor vibrating
too much?
Oil oozing at relay
pipe connections?
Open the stop valve.
Stop valve closed?
Any thermistor
disconnected?
Check No. 06
Check the thermistors.
Error again?
Summary of Contents for SUPER MULTI NX G Series
Page 1: ...SiUS12 928_A Applied Models Inverter Multi Heat Pump G Series J Series...
Page 7: ...SiUS12 928_A Table of Contents vi...
Page 10: ...SiUS12 928_A 1 List of Functions Part 1 List of Functions 1 Functions 3...
Page 11: ...SiUS12 928_A List of Functions 2...
Page 17: ...SiUS12 928_A Specifications 8...
Page 23: ...SiUS12 928_A Specifications Specifications 14...
Page 25: ...SiUS12 928_A Printed Circuit Board Connector Wiring Diagram 16...
Page 37: ...SiUS12 928_A Function and Control 28...
Page 69: ...SiUS12 928_A Control Specification Function and Control 60...
Page 71: ...SiUS12 928_A Operation Manual 62...
Page 73: ...SiUS12 928_A Duct Free System Operation Manual 64 2 Duct Free System 2 1 Remote Controller...
Page 84: ...Duct Free System SiUS12 928_A 75 Operation Manual...
Page 85: ...SiUS12 928_A Duct Free System Operation Manual 76 2 8 TIMER Operation...
Page 86: ...Duct Free System SiUS12 928_A 77 Operation Manual...
Page 87: ...SiUS12 928_A Duct Free System Operation Manual 78 2 9 Note for Multi System...
Page 88: ...Duct Free System SiUS12 928_A 79 Operation Manual...
Page 97: ...SiUS12 928_A Slim Duct Built In System Operation Manual 88...
Page 99: ...SiUS12 928_A Service Diagnosis 90...
Page 169: ...SiUS12 928_A Removal Procedure 160...
Page 225: ...SiUS12 928_A Trial Operation and Field Settings 216...
Page 235: ...SiUS12 928_A Appendix 226...