Tank Heater Switch - Bunn FMD-3 Operating & Service Manual

SERVICE (cont.)

TANk HEATER SWITCH

FIG. 37 TANK HEATER SWITCH
Location:
The tank heater switch is located inside the dis-
penser on the upper right of the whipper motor mount-
ing panel.
Test Procedure:
1. Disconnect the dispenser from the power source.
2. Disconnect the black or white/brown wires from
the main harness.
3. With the switch in the "ON" (lower) position check
for continuity between the center and the upper
terminal. With the switch in the "OFF" (upper)
position no continuity should be present between
center and upper terminals.
If continuity is present as described, the heater "ON/OFF"
switch is operating properly.
If continuity is not present as described, replace the
switch.
Removal and Replacement:
1. Refer to the hopper section in this manual and
remove the hopper assemblies and the hopper
support plate.
2. Remove the switch mounting nut on the front of
the front panel.
3. Remove switch with wires attached from the rear
of the front panel.
4. Remove the wires from the switch terminals and
discard switch.
5. Connect the wires to the new switch, refer to Fig.
38.
5. Push new switch through hole in the front panel
and secure with face nut.
7. Refer to the hopper section in this manual and
install the hopper support plate and the hopper
assemblies.
BLK from Main Harness
P1642.40
(Mechanical Thermostat)
WHI/BRN from Main Harness
(Electronic Thermostat)
BLK from Main Harness
(Mechanical Thermostat)
WHI/BRN from Main Harness
(Electronic Thermostat)
FIG. 38 TANK HEATER SWITCH TERMINALS
39
P1208
29170 091598