Warmer Elements - Bunn VP17A Operating & Service Manual

SERVICE (cont.)
WARMER ELEMENT(S)
FIG. 10 WARMER ELEMENTS
Location:
The warmer element(s) is located under the warmer
plate.
Test Procedures:
1. Disconnect the brewer from the power source.
2. With a voltmeter, check voltage across the red wire
to the terminal block and white/red, brown/black or
violet wire to the "ON/OFF" switch, with the "ON/OFF"
switch in the "ON" (upper) position. Connect the
brewer to the power source. The indication must
be 220 to 240 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 wiring
diagrams and check brewer wiring harness.
4. Remove the three #4-40 screws securing the
warmer assembly to the brewer.
5. Lift the warmer assembly from the brewer.
6. Disconnect the two wires from the warmer element
terminals.
7. Check the continuity across the two terminals on
the warmer element.
If continuity is present as described, reconnect the
red wire, and red/white, brown/black or violet wires
on the warmer element.
If continuity is not present as described, replace the
warmer element.
Removal and Replacement:
1. Remove the three #4-40 screws securing the
warmer assembly to the brewer.
2. Lift the warmer assembly from the brewer.
3. Disconnect the two wires from the warmer element
terminals.
4. Remove the two #8-32 nuts securing the warmer
element to the warmer plate.
5. Securly install new warmer element.
6. Reconnect the two wires to the warmer element
terminals.
7. Securly install warmer assembly on the brewer.
8. Refer to Fig. 11 when reconnecting the wires.
P1164
FIG. 11 WARMER ELEMENT TERMINALS
Page 14
WHI/RED to ON/OFF Switch
BRN/BLK to ON/OFF Switch
VIO to ON/OFF Switch
RED to Terminal Block
10860.1 091300
P1167