– 77 –
If the thermal cut off (TCO) is open, the thermistor
must be checked. If the thermistor checks good,
then the water level should be checked. A low
water level may cause overheating of stainless-
steel tubs. The TCO is located on the right side
of the tub, approximately 16 inches from the front
of the tub.
The TCO is in a series circuit with the Calrod
Heater.
No water or low water may cause the Tub TCO
to trip. Always check for proper water level if the
TCO is open.
The TCO is secured in place with a slide-in
mounting clip.
The heater may be removed by one of two
methods. The first method requires door and
sump removal to gain access to the element nuts.
The second method requires the dishwasher be
removed from its installation.
Element Removal Without Uninstalling the
Dishwasher
1. Disconnect power to the dishwasher.
2. Remove the lower rack.
3. Remove the door (see
Door Removal
under
Door
in the
Tub and Structure
section of this
service guide).
4. Remove the sump assembly (see
Sump
Module Removal
under
Sump Module
in
the
Tub and Structure
section of this service
guide).
5. Disconnect the two wire leads to the heater.
6. Remove the two 15/16-in. heater nuts.
7. Remove the heater from inside the
dishwasher.
Element Removal by Uninstalling the
Dishwasher
1. Disconnect power to the dishwasher.
2. Remove the lower rack.
3. Remove the door (see
Door Removal
).
4. Remove the dishwasher from its installed
position and place on its back.
WARNING
: If the door is not removed and the
dishwasher is not placed on its back, there is a
TIP RISK.
5. Disconnect the two wire leads to the heater.
6. Remove the two 15/16-in. heater nuts.
7. Remove the heater from inside the
dishwasher.
Tub TCO Location
Heat Element Removal
Tub Thermal Cut Off (TCO)
