Service (cont.) – Bunn AF PR-3 User Manual
Page 10
10
Removal and Replacement::
1. Remove the wires from the switch terminals.
2. Compress the clips inside the autofill box and
gently push the switch through the opening
3. Push the new switch into the opening and spread
the clips to hold switch in the autofill box.
4. Refer to Fig 7 when reconnecting the wires.
P1522
FIG. 7 MAIN ON/OFF SWITCH TERMINALS
BLK from Fuse Holder
BLK to Pump Switch #2
MAIN ON/OFF SWITCH
FIG. 6 MAIN ON/OFF SWITCH
P1561
Location:
The main ON/OFF switch is located on the
lower right front of the autofill box just above the power
cord.
Test Procedure:
1. Disconnect the dispenser from the power source.
2. Disconnect the black wire from the fuse holder to
the main ON/OFF switch. Disconnect the white
wire from pump #1.
3. Check for voltage across the black wires removed
from the switch and the white wire removed from
pump #1. Connect the dispenser to the power
source. The indication must be:
a) 120 volts ac for 2 wire 120 volt models.
b) 200 to 240 volts ac for two wire 200 or 240 volt
models.
4. Disconnect the dispenser from the power source.
1
2
1
2
FL
A
FLA
VO
R
OR
INP
UT
INPUT
MIX
ED
PR
MIXED PR
OD
UC
T O
UT
PU
T
ODUCT OUTPUT
2
1
1
2
3
3
3
W
ATER
TER
IN
PU
T
INPUT
RE
FIL
L
REFILL
MA
IN
MAIN
PO
PO
W
ER
WER
If voltage is present as described, proceed to #5.
If voltage is not present as described, refer to the
wiring diagrams and check the dispenser wiring har-
ness.
5. Check for continuity across the switch terminals
with the switch in the “ON” position. Continuity
must not be present when the switch is in the
“OFF” position.
If continuity is present as described, reconnect the
wires to the switch terminals.
If continuity is not present as described, replace the
switch.
28791.1 011500
SERVICE (cont.)