Bunn S, Operating & Service Manual

Page: 16 / 44

Page 16
SERVICE (cont.)
LIMIT THERMOSTAT
Location:
The limit thermostat is located on the rear of
tank assembly.
Test Procedures:
1.
Disconnect the brewer from the power source.
2. Disconnect the blue and black wires from the
limit thermostat.
3. Check for continuity across the limit thermostat
terminals with a ohmmeter.
If continuity is present as described, the limit thermo-
stat is operating properly. If continuity is not present
as described, replace the limit thermostat.
P1800
P1586
FIG. 4 LIMIT THERMOSTAT
FIG. 5 LIMIT THERMOSTAT TERMINALS
Removal and Replacement:
1.
Remove all wires from limit thermostat termi-
nals.
2. Carefully slide the limit thermostat out from
under the retaining clip and remove limit thermo-
stat.
3. Carefully slide the new limit thermostat into the
retaining clip.
4. Refer to FIG. 5 when reconnecting the wires.
29251 052500
BLK to Tank
Heater Switch
BLK to BLU Lead from
Control Thermostat