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SiEN12-710A
Troubleshooting
Service Diagnosis
129
Troubleshooting
Check No.08
Refer to P.151
Check No.13
Refer to P.153
(R7144)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
NO
NO
NO
YES
YES
NO
YES
Abnormal
Normal
Replace the stop valve.
Replace the outdoor unit
PCB.
Replace the compressor.
Correct the power supply or
replace the outdoor unit
PCB.
Reconnect as specified.
Replace the outdoor unit
PCB, outdoor unit fan.
Replace the four way valve
coil.
∗
Inverter checker
Part No.: 1225477
Check No. 08
Check the discharge pressure.
Check No. 13
Check for short-circuit.
Normal
Check the electrolytic capacitor
voltage.
Judgement
Check the power supply
Electricals
or compressor
harnesses connected as
specified?
Turn off the power. Disconnect the
harnesses U, V and W.
Check with the inverter checker (
∗
).
Any LED off?
DC270±30V?
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 ...