Thermal Cut-Offs - Bunn VP17A Operating & Service Manual

SERVICE (cont.)

THERMAL CUT-OFFS

FIG. 8 THERMAL CUT-OFFS
Location:
The thermal cut-offs are located inside the hood
connected to the tank heater terminals.
Test Procedures:
1. Disconnect the brewer from the power source.
2. Disconnect the thermal cut-off from the terminal on
the black lead of the ready light wiring harness.
3. With an ohmmeter, check for continuity across
the thermal cut-off terminals.
If continuity is present as described, the thermal cut-
off is operating properly.
If continuity is not present as described, replace the
thermal cut-off.
4. Disconnect the thermal cut-off from the tank heater
termnal and the red lead from the main wiring
harness.
5. Check for continuity across the thermal cut-off
terminals.
If continuity is present as described, the thermal cut-
off is operating properly.
If continuity is not present as described, replace the
thermal cut-off.
Removal and Replacement:
1. Disconnect the thermal cut-off from the terminal
on the black lead from ready light harness and the
black lead from the control thermostat or the tank
heater terminal and the red lead from the main
harness.
2. Remove the white lead from the tank "keep warm"
heater from the thermal cut-off terminal.
3. Install new thermal cut-off.
4. Refer to Fig. 9 when reconnecting wires.
Thermal Cut-Off
P1262
RED Lead from
Main Harness
WHI from "Keep Warm"
Heater
FIG.9 THERMAL CUT-OFF TERMINALS
Page 13
BLK Lead
BLK Lead from
Control Thermostat
Thermal Cut-Off
BLK Lead from
Ready Light Har-
ness
Tank Heater Terminals
P1389
10860.1 071598