1311298 Daikin Dual-Zone Mini Split System with with 47000 BTU Cooling Capacity, 48500 BTU Heating Capacity and 2x Wall Mounted Indoor Units

User Manual - Page 243

For 1311298.

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SiUS121827E Check
Part 6 Service Diagnosis 237
8.6 Four Way Valve Performance Check
Check No.13
8.7 Inverter Unit Refrigerant System Check
Check No.14
(R21936)
NO
YES
YES
NO
Turn off the power. Then, turn on
the power to restart the system.
Disconnect the four way valve coil
from the connector and check the
continuity.
Start heating operation.
Four way valve coil
Cooling/Dry/Defrost: Not energized
Heating: energized
Replace the outdoor unit
PCB (main PCB).
Replace the four way valve
coil.
Replace the four way valve.
Four way valve
coil resistance at
1000 ~ 2000 Ω?
S80 voltage at
208 - 230 VAC with
compressor on?
(Fig. 1)
(R14674)
(Fig. 1)
Compressor
ON
Voltage at S80
208 - 230 VAC
Time
Refrigerant system check
Is the discharge pipe
thermistor disconnected from
the holder?
Check for refrigerant leakage.
See the section on refrigerant
shortage detection.
(R18870)
YES
NO
Reconnect the thermistor.
Replace the refrigerant.
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