Bunn DUAL - Control Thermostat Service; Control Thermostat Location; Control Thermostat Test Procedure

Page 20
P787
STA
RT ON / WA
RMER
SELECTO
R
RE
A
DY
READY
O
N / WARMER
START
1
1
⁄
2
gal
1 gal
1
⁄2
gal
SELECTO
R
1
1⁄
2
ga
l
1 gal
1
⁄
2
g
al
P786
GRINDER SELECTOR SWITCH
Location:
The grinder selector switch is located in the upper
center on the front of the hood.
Test Procedure:
1. Disconnect the brewer from the power source.
2. Remove all wires from the switch terminals.
3. Place the selector switch in the left position.
4 Check for continuity across the center and right
terminals on the rear of the switch.
5. Continuity must not be present across the center
and left terminals on the rear of the switch.
6. Check the bottom row, then the top row of termi-
nals.
If continuity is present as described proceed to #7.
If continuity is not present as described replace the
switch.
7. Place the selector switch in the right position.
8. Check for continuity across the center and left
terminals on the rear of the switch.
9. Continuity must not be present across the center
and right terminals on the rear of the switch.
10. Check the bottom row, then the top row.
If continuity is present as described, reconnect the
wires, the switch is operating properly.
If continuity is not present as described, replace the
switch.
11. Refer to Fig. 14 when reconnecting the wires.
FIG. 13 GRINDER SELECTOR SWITCH
(DUAL and DUAL SH BREWERS only)
FIG. 14 GRINDER SELECTION
SWITCH TERMINALS
PNKtoPNKLeadfrom
Right Brew Selector Switch
PNKtoPNKLeadfromInterface
Socket
PNKtoPNKLeadfrom
Left Brew Selector Switch
SERVICE (cont.)
41976 031709