Thermal Cut-Off - Vpra, Vpsa - Bunn VPR-VPSSERIES Service & Repair Manual

SERVICE (cont.)

THERMAL CUT-OFF - VPRA, VPSA

FIG. 13-1 THERMAL CUT-OFF
Location:
The thermal cut-outs 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 tank
heater and the red wire from the power connec-
tor.
3. Check for continuity across the thermal cut-off
terminals with an ohmmeter.
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 and blue/black from the control thermo-
stat.
5. Check for continuity across the thermal cut-off
terminals with an ohmmeter.
If continuity is present as decribed, 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 tank
heater and the red wire from the power con-
nector or the blue/black wire from the control
thermostat.
2. Install new thermal cut-off.
3. Refer to Fig. 13-2 when reconnecting wires.
P3448
FIG. 13-2 THERMAL CUT-OFF TERMINALS
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