Bunn VPR APS - Manual (Page 10)

Page 10
FIG. 6 LIMIT THERMOSTAT TERMINALS
SERVICE (cont.)
LIMIT THERMOSTAT
Location:
The limit thermostat is located inside the hood on
the right side of the tank lid.
Test Procedures:
1.
Disconnect the brewer from the power source.
2. Disconnect the blue/black and black wires from
the limit thermostat.
3. Check for continuity across the limit thermostat
terminals with an ohmmeter.
If continuity is present as described, the limit thermostat
is operating properly.
If continuity is not present as described, replace the
limit thermostat.
P2414
FIG. 5 LIMIT THERMOSTAT
P1800
BLK to Tank
Heater
BLU/BLK to Control
Thermostat
TANK HEATER
Location:
The tank heater is located inside the tank
and secured to the tank lid.
Test Procedures:
1.
Disconnect the brewer from the power supply.
2. Check voltage across the black and white wires
with a voltmeter. Plug-in the brewer to the power
source. The indication must be 120 volts ac.
3. Disconnect the brewer from the power source.
If voltage is present as described, proceed to #4
If voltage is not present as described, refer to the Wir-
ing Diagrams and check wiring harness.
4. Disconnect the black wire and the white wire
from the tank heater terminals.
5. Check for continuity across the tank heater ter-
minals.
P2414
FIG. 7 TANK HEATER
Removal and Replacement:
1. Remove all wires from limit thermostat termi-
nals.
2. Carefully slide the limit thermostat out from under
the retaining clip and remove limit thermostat.
3. Carefully slide the new limit thermostat into the
retaining clip.
4. Refer to Fig. 6 when reconnecting the wires.
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