Bunn VP17A service manual SERVICE cont THERMAL CUT-OFFS

SERVICE (cont.)

THERMAL CUT-OFFS

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.

P1262

FIG. 8 THERMAL CUT-OFFS

Location:

The thermal cut-offs are located inside the hood connected to the tank heater terminals.

BLK Lead

Thermal Cut-Off

RED Lead from

Main Harness

WHI from "Keep Warm"

Heater

BLK Lead from Control Thermostat

Thermal Cut-Off

BLK Lead from

Ready Light

Harness

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.

FIG.9 THERMAL CUT-OFF TERMINALS

P1389

Page 13

10860.1 071598