SiUS04-924 Check
Service Diagnosis 107
5.1.3 Four-Way Valve Performance Check
Check No.05
30/36 class AC198~264V
30/36 class 1500 (±10%)
(R9319)
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 the heating-mode run.
* 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 ?
S80 voltage at
with compressor on?
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