Four Way Valve Performance Check - Daikin FVKS25BVMB Service Manual

Checks
5.1.4

Four Way Valve Performance Check

Check No.5
106
Turn off the power and turn it on
again.
Start the heating-mode run.
S80 voltage
at DC 180-220 V with
compressor on?
(Fig. 1)
YES
Disconnect the four way valve coil
from the connector and check the
continuity.
Four way valve
coil resistance at
3kΩ±0.5kΩ?
YES
(Fig. 1)
Voltage at S80
DC180-220V
Compressor
ON
∗ Four way valve coil
Cooling / dry : No continuity
Heating : Continuity
NO
NO
Time
Si06-305
Replace the outdoor unit
PCB.
Replace the four way valve
coil.
Replace the four way valve.
(R3047)
Service Diagnosis