Service, Troubleshooting – Bunn AFPO-2 User Manual
Page 9
9
SERVICE
This section provides procedures for testing and
replacing various major components used in this
dispenser should service become necessary. Refer to
Troubleshooting
for assistance in determining the
cause of any problem.
WARNING - Inspection, testing, and repair of electri-
cal equipment should be performed only by qualified
service personnel. The dispenser should be un-
plugged when servicing, except when electrical tests
are required and the test procedure specifically states
to plug in the dispenser.
COMPONENT ACCESS
WARNING - Disconnect the dispenser from the power
source before the removal of any panel or the replace-
ment of any component.
All components are accessible by removing the
eight #8-32 screws (five on the front and three on the
rear) securing the main housing to the main mount-
ing panel and the removal of the four #8-32 nuts se-
curing the pump/solenoid switch panel to the sole-
noid mounting bracket. Refer to Fig. 1
Refer to the contents listing for component loca-
tion.
Contents
Circuit Board ......................................................... 10
Fuse & Fuse Holder .............................................. 11
Main ON/OFF Switch ............................................. 12
Probe LOW/OFF/HIGH Switches ........................... 13
Pump (Flavor) Start Switches ............................... 14
Refill ON/OFF Switches ........................................ 15
Solenoid ............................................................... 16
Solenoid (Water) Start Switches ........................... 17
Test/Operate Switch.............................................. 18
Vacuum/Supply Pump Assembly .......................... 19
Vacuum Switches ................................................. 21
Piping Diagram..................................................... 22
Wiring Diagrams ................................................... 23
FIG. 1 COMPONENT ACCESS
FL
AV
OR
IN
PU
T
1
2
W
AT
ER
IN
PU
T
RE
FIL
L
MA
IN
PO
W
ER
2
1
1
2
3
3
3
FL
AV
OR
OU
TP
UT
FL
AV
OR
OU
TP
UT
W
AT
ER
OU
TP
UT
FL
AV
OR
OU
TP
UT
W
AT
ER
OU
TP
UT
W
AT
ER
OU
TP
UT
P1521
28791 040501