Solenoid Valve For Dehumidification Check - Daikin E Series Service Manual

Check

3.17 Solenoid Valve for Dehumidification Check

Check No.32
214
Faulty criterion:
In dehumidification test operation mode, PCB is identified as a faulty when the
solenoid valve does not turn on within 2 sec. after compressor start-up.
(When reheating dehumidifying is not used, the operation mode is similar to
cooling operation.)
Stop operation
The voltage
of S43 is 0 V?
NO
Replace the indoor control PCB
(A1P)
YES
Run dehumidification test
operation
Wait 2 sec. after the compressor
on.
Is the voltage
of S43 around 10
to 15 V?
YES
Remove solenoid valve
connecter from S43
Measure the resistance of
solenoid valve.
Is it within
the range of 10 to 60Ω?
YES
Solenoid valve failure is
suspected.
SiBE04-624
NO
Replace the indoor control
PCB (A1P).
NO
Replace the solenoid valve
coil.
Replace the heat
exchanger. (Replacement
of the solenoid valve only is
impossible.)
(R6026)
Service Diagnosis