Table Of Contents - Bunn Single Operating & Service Manual

SERVICE
This section provides procedures for testing and
replacing various major components used in this
brewer 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 brewer should be unplugged
when servicing, except when electrical tests are re-
quired and the test procedure specifically states to
plug-in the brewer.
COMPONENT ACCESS
WARNING - Disconnect the brewer from the power
source before the removal of any panel or the replace-
ment of any component.
All components are accessible by the removal of
the top cover, front inspection panel and warmer base
plate.
The top cover is attached with one #4-40 slotted
head screw.
The front inspection panel is attached with four
#6-32 slotted head screws.
The warmer base is attached with four #6-32 slot-
ted head screws.
N
N
U
B
N
IO
U T
C A
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Brewer Selector Switch ......................................... 16
Bypass Valve ......................................................... 15
Contactor Assembly .............................................. 18
Control Thermostat ............................................... 20
Dispense Valve ...................................................... 22
Electronic Control .....................................23 thru 27
Level Control Board and Level Probe .................... 28
Limit Thermostat ................................................... 30
ON/OFF Switch (Warmer) ...................................... 31
Overflow Protection Switch ................................... 32
Solenoid (Inlet) ..................................................... 33
Start Switch (Brew) ............................................... 34
Tank Heater ........................................................... 35
Timer (Early Models)............................................. 36
Digital Timer (Late Models) ................................... 38
Warmer Element ................................................... 40
Wiring Diagrams .......................................41 thru 46
P846
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Contents
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