Bunn VP17A service manual SERVICE cont ON/OFF WARMER SWITCH

Models: VP17A

1 17
Download 17 pages 49.61 Kb
Page 11
Image 11
SERVICE (cont.)

SERVICE (cont.)

ON/OFF WARMER SWITCH

ONE WARMER

TWO WARMERS

THREE WARMERS

FIG. 4 ON/OFF WARMER SWITCH

P1166.45

 

Location:

The ON/OFF warmer switch(s) 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, remove the red wire from the upper terminal and the black wire from the center terminal.

3.With a voltmeter, check the voltage across the red wire and the black wire. Connect the brewer to the power source. The indication must be 220 to 240 volts ac.

4.Disconnect the brewer from the power source.

If voltage is present as described, reconnect the red wire and proceed to #5.

If voltage is not present as described, refer to the Wiring Diagrams and check the brewer wiring har- ness.

5.With the black wire removed, remove the wire from the lower terminal.

6.Check for continuity across the center and lower terminal with the switch in the "ON" (upper) posi- tion. Continuity must not be present when the switch is in the "OFF" (lower) position.

If continuity is present as described, reconnect the black wire to the center terminal and the remaining wire to the lower terminal.

If continuity is not present as described, replace the switch.

Removal and Replacement:

1.Remove the wires from the switch terminals.

2.Remove front end cap.

3.Compress the clips inside the hood and gently push the switch through the opening.

4.Push the new switch into the opening and spread the clips to hold switch in the hood.

5.Reinstall front end cap.

6.Refer to Fig. 5 when reconnecting the wires.

 

RED to Terminal Block

 

(Red Insert)

 

BLK to Terminal Block

 

(Black Insert)

 

Terminal #1 (See Chart

 

Below)

Connect wire to Terminal #1 as follows:

Lower Warmer

.................................................. WHI/RED

Rear Warmer

VIO

Front Warmer

BRN/BLK

 

P1918

FIG. 5 ON/OFF WARMER SWITCH TERMINALS

Page 11

10860.1 091300

Page 11
Image 11
Bunn VP17A service manual SERVICE cont ON/OFF WARMER SWITCH