Limit Thermostat - Bunn Single TF Operating & Service Manual

SERVICE (cont.)

LIMIT THERMOSTAT

22978.0000
Location:
The limit thermostat is located inside the hood on
the tank lid just to the left of the tank heater.
Test Procedure:
1. Disconnect the brewer from the power supply.
2. Disconnect both black wires from the limit ther-
mostat.
3. Check for continuity across the limit thermostat
terminals with a ohmmeter.
If continuity is present as described, reconnect the
black wires to the limit thermostat , the limit thermo-
stat is operating properly.
If continuity is not present as described, press the
reset button on the limit thermostat and repeat step
#3.
After repeating step #3 no continuity is shown, replace
the limit thermostat.
J1
J2
SET
K LOC
Removal and Replacement
1. Remove all wires from the limit thermostat termi-
nals.
2. Carefully remove the two #8-32 nuts securing the
limit thermostat to tank lid and remove limit ther-
mostat.
3. Carefully secure new limit thermostat to tank lid.
4. Refer to the illustration below when reconnectng
the wires.
BLK to Terminal
Block (Black Insert)
P999
Page 30
BLK to Tank Heater
(Left Terminal)
BLK to Contactor
Terminal
P833
27118 100400