Specifications

4. Remove nuts, washers, and screws from relay,
then remove relay.
5. Install new relay.
6. Reconnect the wires identified or marked in step
3.
7. Replace back control cover.
8. Reconnect furnace to power supply.
9. Test operation of furnace.
To Replace Door Switch (Micro
Switch)
1. Disconnect furnace from power supply.
2. Remove the four top screws on the front dial
and the four bottom screws on the back cover.
3. Slide the control section forward. (Do not pull
excessively on the internal wires).
4. Disconnect the wires from the door switch.
(Note connection and placement of wires to
micro switch). Identify or mark wires.
5. Remove the two screws and nuts from the micro
switch.
6. Insert new micro switch and secure with screws
and nuts removed in Step 5.
7. Reconnect wires identified or marked in Step 4
to new door switch.
8. To realign door switch see below, steps 5
through 7.
9. Slide control section back and replace the
screws described in Step 2.
10. Reconnect to power supply.
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MAINTENANCE AND SERVICING