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Check
SiEN12-710A
148
Service Diagnosis
5.1.4 Four Way Valve Performance Check
Check No.05
(R7156)
NO
YES
YES
NO
(Fig. 1)
Voltage at S80
DC220-240V
ON
Compressor
Time
*
Four way valve coil
Cooling / dry : No continuity
Heating : Continuity
Four way
valve coil resistance at
1500 ohms?
S80 voltage
at DC 220-240 V with
compressor on? (Fig. 1)
Turn off the power and turn it on
again.
Start the heating-mode run.
Disconnect the four way valve coil
from the connector and check the
continuity.
Replace the outdoor unit
PCB.
Replace the four way valve
coil.
Replace the four way valve.
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 ...