Rational iCombi Classic

2
Service error: 42.3
1
Disconnect the connector on the solenoid valve block and check the
input voltage with a multimeter on the contact of the grey cable.
If Y3 is on "On",
230 V must be measured between the
contact (grey cable) and neutral.
Is this the case?
Repeat the voltage
measurement on the contact
X19 on the I/O board.
No Is 230 V measured here? Replace the I/O board.
Check the cable
connection and replace if
necessary.
End
Check the hose running from the solenoid valve Y3 to
the moistening nozzle for blockage and remove if
necessary.
Replace the solenoid valve block.
End
Yes
No
Yes