Bunn TWF - Manual (Page 26)

Page 26
FIG.21 TEA/OFF/COFFEE SWITCH TERMINALS
P1367
SERVICE (cont.)
TEA/OFF/COFFEE SWITCH
FIG. 20 TEA/OFF/COFFEE SWITCH
P1959.60
Location:
The TEA/OFF/COFFEE 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, white/violet and white/red
wires from the switch terminals.
3. With a voltmeter, check the voltage across the
black wire removed from the TEA/OFF/COFFEE
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 for two wire 120
volt models and three wire 120/208 volt models,
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 left ter-
minals of the top row when switch is in the "TEA"
position and the center and right terminals of the
top row when the switch is in the "COFFEE” posi-
tion.
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. 21 when reconnecting the wires.
BLK to Limit Thermostat
WHI/VIO to Tea
Brew Timer TL1
WHI to Tea Brew
Timer TL2
WHI/RED to Coffee
Brew Timer TL1
10510 081599