Replacing A Heater Pad - Welbilt Frymaster UHCTHD Service Manual

Maintenance
INSTRUCTIONS FOR REPLACING A HEATER PAD
Pad heater probes are located in the heater pad assembly.
NOTE : Failed RTD's require a heater pad replacement.
1. Disconnect the power.
2. Remove the four (4) screws that attach the top of the
cabinet.
3. Remove both sides, by removing the two (2) Phillips
head screws at the bottom of the each side panel and
sliding up and away from the cabinet.
4. The power and RTD wires are visible on the left side.
RTD
Leads
3-2
5. Bolts secure the framework that holds the heater
plates; Allen screws secure the bezels. The complete
slot assembly must be removed to replace the heater
plate.
6. A third fastener, a small screw also secures the bezel.
It must be removed to get to the heater plate.
7. RTD probe connections (brown and red) are at the
bottom of the IO board. Heater plate connections
(white and blue) are at the top of the IO board. Mark
plugs for reassembly. Pay close attention to their
placement. Unplug heaters and probes associated
with the slot.
8. Raise heater plate and slide out the insulation under
the plate to gain access to heater pad.
9. Route the power coupling through the cabinet interior.
10. Pull the heater plate out carefully.
11. Flip the aluminum plate over. Peel the old heater pad
off and attach the new one.
12. Reverse the steps to reassemble the cabinet.
Power
Heater
Plate
Leads
Section 3