SiUS12-928_A
Troubleshooting
Service Diagnosis
142
Troubleshooting
Check No.07
Refer to P.153
Check No.08
Refer to P.154
Check No.13
Refer to P.156
(R11900)
Caution
NO
YES
NO
YES
NO
YES
YES
NO
NO
YES
YES
NO
Monitor the supply voltage,
discharge and suction pressures,
and other factors for a long term.
Possible causes
∗
Instantaneous supply voltage
drop
∗
Compressor overloaded
∗
Contact-induced electrical short
circuit
∗
An output overcurrent signal may result from wrong internal wiring. If the wires have been
disconnected and reconnected and the system is interrupted by an output overcurrent, take the
following procedure.
Check No. 08
Check the discharge pressure.
Check No. 13
Check the
power transistor.
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.
Turn off the power and turn it on
again to start the system. See if the
same error occurs.
Check the supply voltage.
Keep on using as it is.
Check the connectors and
other components.
Fully open the stop valve.
Correct the power supply.
Replace the compressor.
Correct the power supply or
replace the SPM or the
PM1.
(Replace the outdoor unit
PCB.)
Replace the SPM or the
PM1
.
(Replace the outdoor unit
PCB.)
Normal?
Error again?
Stop valve fully open?
Voltage as rated?
Any LED off?
∗
Inverter checker
Part No.: 1225477
Short circuit or
wire breakage between
compressor's coil
phases?
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Содержание SUPER MULTI NX G Series
Страница 1: ...SiUS12 928_A Applied Models Inverter Multi Heat Pump G Series J Series...
Страница 7: ...SiUS12 928_A Table of Contents vi...
Страница 10: ...SiUS12 928_A 1 List of Functions Part 1 List of Functions 1 Functions 3...
Страница 11: ...SiUS12 928_A List of Functions 2...
Страница 16: ...SiUS12 928_A 7 Specifications Part 2 Specifications 1 Specifications 9 1 1 Indoor Unit 9 1 2 Outdoor Unit 11...
Страница 17: ...SiUS12 928_A Specifications 8...
Страница 23: ...SiUS12 928_A Specifications Specifications 14...
Страница 25: ...SiUS12 928_A Printed Circuit Board Connector Wiring Diagram 16...
Страница 35: ...SiUS12 928_A Printed Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 26...
Страница 37: ...SiUS12 928_A Function and Control 28...
Страница 69: ...SiUS12 928_A Control Specification Function and Control 60...
Страница 71: ...SiUS12 928_A Operation Manual 62...
Страница 73: ...SiUS12 928_A Duct Free System Operation Manual 64 2 Duct Free System 2 1 Remote Controller...
Страница 83: ...SiUS12 928_A Duct Free System Operation Manual 74 2 7 HOME LEAVE Operation is no longer displayed on the LCD...
Страница 84: ...Duct Free System SiUS12 928_A 75 Operation Manual...
Страница 85: ...SiUS12 928_A Duct Free System Operation Manual 76 2 8 TIMER Operation...
Страница 86: ...Duct Free System SiUS12 928_A 77 Operation Manual...
Страница 87: ...SiUS12 928_A Duct Free System Operation Manual 78 2 9 Note for Multi System...
Страница 88: ...Duct Free System SiUS12 928_A 79 Operation Manual...
Страница 97: ...SiUS12 928_A Slim Duct Built In System Operation Manual 88...
Страница 99: ...SiUS12 928_A Service Diagnosis 90...
Страница 169: ...SiUS12 928_A Removal Procedure 160...
Страница 225: ...SiUS12 928_A Trial Operation and Field Settings 216...
Страница 235: ...SiUS12 928_A Appendix 226...
Страница 243: ...SiUS12 928_A Wiring Diagrams Appendix 234...