Bunn TB3Q-LP SERVICE cont ON/OFF SWITCH, Remove the black and white/violet wires from the

Models: TB3Q TB3Q-LP

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SERVICE (cont.)

SERVICE (cont.)

ON/OFF SWITCH

P3034

FIG. 10 ON/OFF SWITCH

5. Disconnect the brewer from the power source.

If voltage is present as described, proceed to #6.

If voltage is not present as described, refer to the Wir- ing Diagrams and check the wiring harness.

6.Check for continuity across the center and end terminals of the top row when the switch is in the “ON” position.

If continuity is present as described, replace the wires, the switch is operating properly.

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 the switch captive in the hood.

4.Refer to FIG. 11 when reconnecting the wires.

Location:

The ON/OFF switch is located in the front of the hood, above and to the left of the brew funnel.

Test Procedure:

1.

Disconnect the brewer from the power source.

2.

Remove the black and white/violet wires from the

 

switch terminals.

3.

With a voltmeter, check the voltage across the

BLK to Power Cord

WHI/VIO to On/

Off Switch

WHI/VIO to BrewRemove the black and white/violet wires from the

Timer TL1

WHI/VIO to On/

Off Switch

WHI to Brew Timer TL2 or RED to Brew Timer TL2

black wire removed from the ON/OFF switch and

the white wire on the 100 and 120 volt two wire,

and red wire on the 230 volt two wire remaining

on the switch terminal.

4. Connect the brewer to the power source. The in-

dication must be:

a) 120 volts ac for two wire 120 volt models.

b) 230 volts ac for two wire 230 volt models.

c) 100 volts ac for two wire 100 volt models.

P1801

FIG.11 ON/OFF SWITCH TERMINALS

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37236 080504

 

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Bunn TB3Q-LP service manual SERVICE cont ON/OFF SWITCH, Remove the black and white/violet wires from the