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C C o o m m p p o o n n e e n n t t T T e e a a r r d d o o w w n n
T T u u r r b b i i d d i i t t y y S S e e n n s s o o r r / / T T h h e e r r m m i i s s t t o o r r
The turbidity sensor/ thermistor is located in the
front portion of the water collection section of the
sump. This sensor is used by the control to
determine the turbidity of the water, then adjust the
cycle length as needed, and also to determine
water temperature in the dishwasher. An o-ring
seals the sensor from leaking water into the base
tray.
The thermistor is wired to the electronic control
and can be checked at the control for resistance.
The thermistor is checked by reading its resistance
at room temperature; this will be 10K ohms, if it is
checked after a fill, the reading will very depending
on water temperature.
To remove the turbidity sensor/ thermistor:
1. Pull unit from its installation position. Lay unit
on its back.
2. Remove the base tray.
3. Push back the retaining clip and pull electrical
connection from turbidity sensor/ thermistor.
(See Figure 5-36)
4. Using a #20 Torx bit, extract the two screws
securing the turbidity sensor/ thermistor to the
bottom of the sump. Pull sensor from unit.
I I n n l l i i n n e e H H e e a a t t e e r r A A s s s s e e m m b b l l y y R R e e m m o o v v a a l l
Water pulled from the sump by the wash pump
first passes through the inline heater before enter-
ing the water distribution system. The inline heater
assembly is made up of a 1200 watt heater,
formed into a coil, along with a safety thermostat
and a thermal fuse all mounted onto a stainless
steel tube.
The inline heater can be checked for resistance at
the electronic control. The ohms reading on a cold
heater is 11.7 ohms. The inline heater is not to be
checked with power applied without water in unit.
The safety thermostat is a self resetting thermostat
that opens at 200° F and resets at 100°F. The
thermal fuse is a one time fuse that opens at
440°F. If the thermal fuse should open, the heater
assembly will need to be replaced.
N N O O T T E E : : If unit was operated prior to service, water
may be present in the tubing. Have a towel or
absorbent material on hand when servicing water
system components.
F F i i g g u u r r e e 5 5 - - 3 3 6 6 . . T T u u r r b b i i d d i i t t y y S S e e n n s s o o r r / / T T h h e e r r m m i i s s t t o o r r
Ground Wires
Ground Wire
Terminal
F F i i g g u u r r e e 5 5 - - 3 3 7 7 . . I I n n l l i i n n e e H H e e a a t t e e r r A A s s s s e e m m b b l l y y R R e e m m o o v v a a l l
To remove the inline heater:
1. Pull unit from its installation position. Lay unit
on its back.
2. Remove the base tray.
3. Disconnect the electrical leads from the inline
heater terminals and the ground wire from the
terminal on the inline heater housing.
(See Figure 5-37)
4. Using a flat bladed screwdriver, loosen the
tubing clamps from both ends of the inline
heater.
5. Pull tubing off both ends of inline heater and
remove from unit. The plastic cover snaps
onto the wire lead of the heating coil and
covers the high voltage components.
4-18
Screws
Retaining Clip
R R e e m m o o v v a a l l
Electrical
Terminals
To Control
Assembly
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