Bunn S User Manual

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Page 13
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 electrical
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 or top warmer housing and front and rear
inspection panels.
The top cover for Models with no top warmer and
the top warmer housing is attached with four #8-32
screws. Unplug upper wiring harness and set housing
aside.
The front and rear inspection panels are attached
with four #8-32 screws each.
Contents
Control Thermostat ............................................. 14
Limit Thermostat ................................................ 16
ON/OFF Switch.................................................... 17
Solenoid ............................................................. 18
Start Switch (Brew) ............................................ 19
Tank Heater ........................................................ 20
Brew Timer (Early Models) ................................. 22
Digital Timer (Late Models) ................................ 24
Liquid Level Board .............................................  26
Relay..................................................................  28
Warmer Element ................................................  29
Thermal Cut-off .................................................  30
Wiring Diagrams .................................... 31 thru 43
P1584
FIG. 1 COMPONENT ACCESS
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