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Water Valve Test
1. Attempt to activate water valve using Service
Mode. Pump out water as necessary using
Service Mode. If an in ter mit tent failure is
suspected, activate water valve 5 times using
Service Mode. Water valve should stay on for
50 to 71 seconds per ac ti va tion and should
not turn on and off during the 50 to 71 second
activation time.
2. If the water valve is not operating properly or
water level is low, check the following:
• Water valve, fl ood switch, fl ood switch
fl oat and stem, transorb, and then main
control. The fl ood switch should open
when the water level is approximately
1
/4-in. above the base (bottom) of the fl oat
dome.
• Resistance through the water valve
so le noid coil - 750 Ω to 1200 Ω.
• Clogged screen in water valve.
Transorb
The dishwasher contains a transient absorber
(“transorb”) in the water valve circuit. The
transorb absorbs electrical transients created
when the water valve is turned off. It is wired in
the harness between the line and the neutral side
of the water valve circuit. If the transorb fails, it
may create a short circuit that would cause the
circuit breaker to trip when the water valve is
activated.
To check the transorb, disconnect power to the
dishwasher and unplug the connector from the
water valve. Measure the resistance between
the two terminals in the connector. The transorb
is good if the resistance measurement is 100K
ohms or higher.
To replace the transorb, order the kit
WD35X10025. It contains a transorb with two
attached butt connectors and instructions. The kit
allows you to splice a new transorb into the wire
harness.
Transorb Location
A shorted transorb can damage the water valve
circuit in the electronic control. If the transorb
has failed, replace the electronic control along
with the transorb to prevent future related control
problems.
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