Heating Element - GEAppliances PermaTuf GLD28**V Technical Service Manual

Turbidity Sensor
The turbidity sensor measures the amount of
suspended particles in the wash water in the sump.
The sump water lays between the 1/4- to 3/8-in.
gap between the LED transmitter and the receptor
during the designated fi lls. Successive turbidity
measurements are supplied to the control module
and used to determine whether to add or skip any
prewash or rinse cycles and whether to adjust the
wash or heat times. By measuring the turbidity level,
the control module can conserve energy on lightly
soiled loads by skipping unnecessary cycles. If the
soil level is high, the control will add one or more
rinse cycles and increase the wash and heat times
as necessary.
Note: If the turbidity sensor fails, the unit will
operate for the maximum amount of time, using
the maximum number of wash and rinse fi lls for the
selected cycle.
To remove the turbidity sensor:
1. Remove the dishwasher from its installation.
2. Lay the dishwasher on its back.
3. Disconnect the wire harness from the turbidity
sensor.
4. Loosen the 5/16-in. hex-head screw from the
hose clamp and pull the turbidity sensor out of
the sump.
Note: When installing the turbidity sensor, align the
sensor tab in the cutout before tightening the hose
clamp.
Disconnect
Tab
– 30 –

Heating Element

The heating element maintains water temperature
during some wash and rinse cycles.
The heater has an approximate resistance value of
17 . It is rated at 835 watts in wet conditions and
665 watts in dry conditions.
Operation of the heating element can be checked
by using the service test mode. (See
.) Allow 1 or 2 minutes before opening the
Mode
dishwasher door and note if heat is present.
To remove the heating element:
1. Remove the dishwasher from its installation.
2. Lay the dishwasher on its back.
3. Disconnect the 2 wires from the heater
terminals.
4. Remove the 2 nuts holding the heater to the
dishwasher housing.
Disconnect
5. Remove the lower spray arm. (See
.)
Arm
6. Release the heater from the 2 retainers and
remove it from the tub.
Caution: To prevent water leakage, assure the
O-rings are placed between the heater and tub fl oor
and the heater is secured in the 2 retainers before
installing the heater nuts.
Retainer
Service Test
Disconnect
Lower Spray
O-ring
Retainer