Check SiUS04-924_A
Service Diagnosis 113
5.5 Four-Way Valve Performance Check
Check No.13
5.6 Inverter Unit Refrigerant System Check
Check No.14
(R14715)
NO
YES
YES
NO
∗ Four way valve coil
Cooling / Dry : No continuity
Heating : Continuity
Turn off the power and turn it on
again.
Start heating operation.
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.
S80
voltage at 208 - 230
VAC with compressor
on? (Fig. 1)
Four way
valve coil resistance
at 1000 ~ 2000 Ω?
(R14716)
(Fig. 1)
Compressor
ON
Voltage at S80
208 - 230 VAC
Time
Refrigerant system check
Check for refrigerant leakage.
See the service diagnosis on
refrigerant shortage (U0).
(R8259)
YES
NO
Place the thermistor.
Replace the refrigerant.
Is the
discharge pipe thermistor
disconnected from the
holder?
To Next Page
Loading...
