SERVICE (cont.)
ON/OFF WARMER SWITCH
ONE LOWER WARMER | |
TWO WARMERS | |
THREE WARMERS | |
FIG. 6 ON/OFF WARMER SWITCHES | P1166.40 |
Location:
The ON/OFF warmer switch(es) 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 white wire from the upper terminal and the black wire from the center terminal.
3.With a voltmeter, check the voltage across the white wire and the black wire. Connect the brewer to the power source. The indication must be:
a)100 volts ac for two wire 100 volt models.
b)120 volts ac for two wire 120 volt models.
4.Disconnect the brewer from the power source.
If voltage is present as described, reconnect the white wire and proceed to #5.
If voltage is not present as described, refer to the Wiring Diagrams and check the brewer wiring harness.
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. 7 when reconnecting the wires.
WHI to Lower Warmer
BLK to Terminal Block or Tank Heater Switch
Terminal #1 (See Chart Below)
| P1918 |
Connect wire to Terminal #1 as follows: |
|
Lower Warmer | WHI/RED |
One Upper Warmer (Rear) | VIO |
Two Upper or Side Warmers |
|
(Front) | BRN/BLK |
(Rear) | VIO |
FIG. 7 ON/OFF SWITCH TERMINALS
Page 6 | 46721 | 052512 |
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