Transorb; Water Valve Test - GE Monogram ZBD6800K Technical Service Manual

Water Valve Test

1. Attempt to activate water valve using
. Pump out water as necessary using
Mode
. If an in ter mit tent failure is
Service Mode
suspected, activate water valve 5 times
using . Water valve should stay
Service Mode
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. A normal fi ll will be
approximately 1.49 gallons.
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
/ -in. above the base (bottom) of the fl oat
4
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
Service
allows you to splice a new transorb into the wire
harness.
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
Transorb Location
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