Check
SiENBE04-808_A
147
Service Diagnosis
5.1.3 Four Way Valve Performance Check
Check No.05
(R11903)
NO
YES
YES
NO
Turn off the power and turn it on
again.
Disconnect the four way valve coil
from the connector and check the
continuity.
Start heating operation.
∗
Four way valve coil
Cooling / Dry : No continuity
Heating : Continuity
Replace the outdoor unit
PCB.
Replace the four way valve
coil.
Replace the four way valve.
Four way valve
coil resistance at 1000 ~
2000
Ω
?
S80 voltage at
220 - 240 VAC with
compressor on?
(Fig. 1)
(R11904)
(Fig. 1)
Voltage at S80
220 - 240 VAC
ON
Compressor
Time
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