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PRECISION SELECT CONTROL
FDB1250RE
FDB1050RE
The new Precision Select Control is an electronic
control which uses a knob mounted selector switch
to select the desired wash cycle in place of a keypad
assembly. The knob mounted selector switch can be
turned both clockwise and counter clockwise to
select a cycle. The variety of cycles will vary depend-
ing on model; however, the Normal wash will always
be at the twelve o'clock position on the selector
switch.
6 position cycle selector
5 position cycle selector
COMPONENT OPERATIONS
To the left of the selector is a start pad along with
any options the model may have. Each option pad
has an LED that will illuminate when the option is
selected. Between the option pads and the selector
are status lights to illuminate progression of the
cycle operation. For models that offer a sanitize
rinse option, there is a sanitize light to indicate when
this cycle is completed properly. A cycle is started
by the selector switch being turned to the desired
cycle, any options desired selected, and the Start/
Cancel pad pressed.
If desired the start of a cycle can be delayed by
pressing the Delay start pad. Pressing this pad
multiple times will increase the number of hours the
start of a cycle is delayed. When using this option
the Start/Cancel pad is not pressed. Operation of
the control and testing will be covered in later
sections.
WASH SYSTEMS
Dishwasher models incorporating either the Preci-
sion or the Precision Direct wash systems can be
adapted to use this Precision Select Control. The
operation of the Precision and the Precision Direct
wash systems are the same with differences only in
the location of certain components. Both systems
are designed to operate with only one spray arm at a
time. The alternating of the spray arms will start in
the pre-wash and can change in 90 seconds incre-
ments throughout the cycles.
The alternating of the spray arms is achieved with a
check ball located on a ramp between two water
outlets from the sump. There is an outlet in the
center of the sump for the bottom spray arm. Then a
second opening for the center spray arm, that on the
Precision direct models also supples water to the
upper shower nozzle. Pictured below are the two
sumps with the check ball in the starting position.
4
Options for FDB1250RE
Options for FDB1050RE
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