Bunn TU3QF-EZ Guía Del Usuario

Page 21

FIG. 12 ON/OFF SWITCH

P2150.40

Location:

The ON/OFF switch is located in the front of the

hood, above and to the right of the brew funnel.

Test Procedure:
1. Disconnect the brewer from the power source.
2. Remove the black and white/red wires from the

switch terminals.

3. With  a  voltmeter,  check  the  voltage  across  the

black wire removed from the ON/OFF switch and
the white wire remaining on the switch terminal.

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

dication must be 120 volts ac.

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 Diagram and check the wiring harness.

6. Check  for  continuity  across  the  center  and  end

terminals of the bottom 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. 13 when reconnecting the wires.

FIG.13 ON/OFF SWITCH TERMINALS

P2144

BLK to Control
Board J1-7

WHI to Power Cord

33030 052600

WHI/RED to On/Off
Switch
WHI/RED to Control
Board J1-8

WHI/RED to On/
Off Switch