On/Off Warmer Switch; On/Off Switch (Warmers) - Bunn VPR VPS Operating & Service Manual

SERVICE (cont.)

ON/OFF WARMER SWITCH

FIG. 7 ON/OFF WARMER SWITCHES
Location:
The ON/OFF warmer switches are located on the
front of the hood.
Test Procedure:
1. Disconnect the brewer from the power source.
2. Viewing the switch from the back locate the black
wire from the switch terminal.
3. With the switch in the "ON" position check the
voltage across the black wire of the switch and
the white wire on the lamp or red wire on the lamp
with a voltmeter. Plug-in the brewer to the power
source. The indication must be:
a) 120 volts ac for two wire 120 volt models.
VPS
P3447
VPR
P2412
b) 220 volts ac for two wire 220 volt models.
4. Disconnect the brewer from the power source.
If voltage is present as described, proceed to #5.
If voltage is not present as described, refer to the
Wiring Diagrams and check the brewer wiring har-
ness.
5. Remove both wires from the switch and check for
continuity across the terminals with the switch in
the "ON" position. Continuity must not be present
when the switch is in the "OFF" position.
If continuity is present as described, reconnect the
wires to the terminals.
If continuity is not present as described, replace the
switch.
Removal and Replacement:
1. Remove the wires from the switch terminals.
2. Compress the clips inside the hood and gently
push the switch through the opening.
3. Push the new switch into the opening and spread
the clips to hold switch in the hood.
4. Refer to Fig. 8 when reconnecting the wires
WHI/RED to Brew Station Warmer
VIO to Upper Warmer
BRN/BLK to Lower Right Warmer
BLK to Cordset
WHI to Cordset
VPS Models & VPR Models with Lighted switches
VPS Models & VPR Models without Lighted switches
FIG. 8 ON/OFF WARMER SWITCH TERMINALS
Page 11
#1
#2
BLK to Cordset
WHI/RED to Brew Station Warmer & Lamp
VIO to Upper Warmer & Lamp
BRN/BLK to Lower Right Warmer & Lamp
BLK to Cordset
WHI/RED to Brew Station Warmer & Lamp
VIO to Upper Warmer & Lamp
BRN/BLK to Lower Right Warmer & Lamp
VPRA & VPSA Models
#3
P1131
P1253
10053 011405