Limit Thermostat - Bunn Single Operating & Service Manual

SERVICE (cont.)

LIMIT THERMOSTAT

FIG. 16 LIMIT THERMOSTAT
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. With an ohmmeter, check for continuity across
the limit thermostat terminals.
If continuity is present as described, reconnect the black
wires to the limit thermostat , the limit thermostat 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, if no continuity is shown,
replace the limit thermostat.
Removal and Replacement
1. Remove all wires from the limit thermostat termi-
2. Carefully remove the two #8-32 nuts securing
3. Carefully secure new limit thermostat to tank
4. Refer to Fig. 17 when reconnectng the wires.
BLK to Terminal
Y
A D
R E
O R
C T
L E
S E
Block (Black Insert)
R
M E
A R
/ W
O N
T
A R
S T
E R
A T
T W
H O
N
U T IO
C A
P819
Page 30
nals.
the limit thermostat to tank lid and remove limit
thermostat.
lid.
FIG. 17 LIMIT THERMOSTAT TERMINALS
BLK to Tank Heater
(Left Terminal)
BLK to Contactor Ter-
minal
P833
27038 030901