159
Replace the Main Control Board and repeat the Diagnostic Cycle to check for any further alarms.
Is one or all the Solenoid Valves not working?
Check whether the tap is open, if the water pressure
is too low and make sure the tubes are connected and
not kinked. (See Fig. 3)
Is the resistance measurement of the solenoid valve
approximately 1375Ω ± 10%? (Measure it directly on the
Solenoid Valve terminals without wiring). (See Fig. 4)
Replace the Solenoid Valve and repeat the Diagnostic
Cycle to check for any further alarms.
Reconnect the connector and measure approximately
1375Ω ± 10% on the Solenoid Valve wiring connector on
the circuit board side between terminals J20-1 & J20-3,
J18-1& J18-3 and J18-4 & J18-6 (See Fig. 5). Is the
Solenoid Valve wiring ok?
Replace / Repair the wiring and repeat the Diagnostic
Cycle to check for any further alarms.
NO
NO
NO
Y
E
S
Y
E
S
Y
E
S
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