Thermostat - Henny Penny HC-4 Service Manual

2-8. THERMOSTAT

1. Disconnect the electrical supply to the cabinet.
To avoid electrical shock or property damage, move the
power switch to OFF and disconnect main circuit
breaker, or unplug cord at wall receptacle.
2. Remove the access panel from the top of the module.
Step 5
3. Remove the four (4) screws from the control panel and pull it
down.
4. Remove the wires from the thermostat. With the thermo-
stat set at the maximum setting (all the way clockwise), the
circuit should be closed. With the thermostat in the 0, or OFF,
position (all the way counterclockwise), the circuit should be
open. If the thermostat is found to be defective, replace it by
continuing with the following instructions in this section.
5. Remove the four (4) nuts that hold the blower box to the cabi-
Step 7
net.
6. Lift the blower box up to expose the thermometer and
thermostat bulbs.
7. While holding the blower box, remove the two (2) nuts that
secure the bulb retaining clamps and remove the thermostat
bulb from the clamps.
8. Using a 5/64" Allen wrench, loosen the two (2) set screws in
Step 8
the thermostat knob and remove the knob.
9. Remove the two (2) nuts that hold the thermostat bracket to
the control panel.
10. Remove the thermostat shaft extension with a 1/16" Allen
wrench.
11. Remove the two (2) screws that hold the thermostat to the
bracket.
Step 11
12. Remove the thermostat from the unit.
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