Bunn VPR-VPSSERIES - Thermal Cut-Off

Page 13
SERVICE (cont.)
THERMAL CUT-OFF - VPRA, VPSA
FIG. 13-1 THERMAL CUT-OFF
P3448
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
FIG. 13-2 THERMAL CUT-OFF TERMINALS
P1269
41667 102708
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.