Bunn G1 Manuales De Servicio
9
CONTENTS
Bag Sensor Switch ..............................................9
Motor and Grind Chamber (AC) ........................10
Motor and Grind Chamber (DC) ........................13
Off/On/Start Switch ...........................................16
Rectifier ............................................................17
Relay .................................................................18
Wiring Diagrams ..........................................20,21
This section provides procedures for testing and
replacing various major components used in this
grinder should service become necessary. Refer to
Troubleshooting for assistance in determining the
cause of any problem.
COMPONENT ACCESS
WARNING - Unplug the grinder before the removal of
COMPONENT ACCESS
WARNING - Unplug the grinder before the removal of
any panel or the replacement of any component.
All components are accessible by the removal of
the top lid, hopper, and rear panel.
The top lid is attached with two #6-32 screws,
the hopper assembly is attached with four #6-32
screws and the rear panel is attached with ten #8-32
screws.
SERVICE
FIG. 1 COMPONENT ACCESS
P1724
FIG. 2 BAG SENSOR SWITCH
P1704
Location:
The bag sensor switch is located inside the lower
front of the grinder housing behind the coffee dispens-
ing chute.
Test Procedure:
1. Disconnect the grinder and place a coffee bag
behind the dispense chute.
2. Remove the white/violet wire from the bag sensor
switch.
3. Check the voltage across the white/violet wire
from the bag sensor switch and the white wire,
red/black wire or red wire on the relay coil with
a voltmeter. Hold the Off/On/Start switch in the
“START” (lower) position and connect the grinder
to the power source. The indication must be:
a. 120 volts ac for two wire 120 volt models.
b. 230 volts ac for two wire 230 volt models.
c. 240 volts ac for two wire 240 volt models.
BAG SENSOR SWITCH
10191 011500