SiUS12-928_A
Troubleshooting
Service Diagnosis
120
Troubleshooting
Check No.07
Refer to P.153
Check No.08
Refer to P.154
Check No.14
Refer to P.157
(R11896)
Caution
∗
An input overcurrent may result from wrong internal wiring. If the wires have been disconnected and
reconnected, and the system is interrupted by an input overcurrent, take the following procedure.
NO
YES
NO
YES
YES
NO
Start operation and measure the
input current.
Check No. 14
Check the main circuit electrolytic
capacitor.
Check No. 08
Check the discharge pressure.
Check No. 07
Check the installation condition.
Check with the inverter checker (
∗
).
Turn off the power and disconnect
the harnesses U, V, and W.
Turn off the power, and reconnect
the harnesses. Turn on the power
again and start operation.
Replace the outdoor unit
PCB.
Replace the electrolytic
capacitor.
Correct the power supply or
replace the SPM or PM1.
(Replace the outdoor unit
PCB.)
Normal?
Any LED off?
Input current flowing
above its stop level?
∗
Inverter checker
Part No.: 1225477
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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...