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SiEN12-710A
Troubleshooting
Service Diagnosis
123
Troubleshooting
Check No.07
Refer to P.150
Check No.08
Refer to P.151
Check No.14
Refer to P.153
Note:
If the model doesn't have SPM, replace the outdoor unit PCB.
(R7140)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
NO
YES
NO
YES
YES
NO
Replace the outdoor unit
PCB.
Correct the power supply
or replace the
SPM.(Replace the outdoor
unit PCB.)
Replace the electrolytic
capacitor.
Input current
flowing above its stop level?
Check No. 14
Check the main circuit electrolytic
capacitor.
Check No. 08
Check the discharge pressure.
Check No. 07
Check the installation condition.
*
Inverter checker
Part No.: 1225477
*
An input over-current may result from wrong internal wiring. If the wires have been disconnected and
reconnected for part replacement, for example, and the system is interrupted by an input over-current,
check the wires again.
Get restarted and measure the
input current.
Normal?
Turn off the power and disconnect
the harnesses U, V and W.
Check with the inverter checker (
*
).
Any LED off?
Turn off the power, and reconnect
the harnesses. Turn on the power
again and get restarted.
Summary of Contents for 2MKS40FV1B
Page 11: ...Introduction SiEN12 710A x ...
Page 12: ...SiEN12 710A List of Functions 1 Part 1 List of Functions 1 Cooling Only 2 2 Heat Pump 4 ...
Page 17: ...Heat Pump SiEN12 710A 6 List of Functions ...
Page 25: ...Heat Pump SiEN12 710A 14 Specifications ...
Page 111: ...Instruction SiEN12 710A 100 Operation Manual ...
Page 199: ...Wiring Diagrams SiEN12 710A 188 Appendix ...
Page 203: ...SiEN12 710A iv Index ...