Bunn Fast Cup Series Service & Repair Manual page 36

TOP PANEL
Coffee Bean Hopper Detect Switch
Purpose: A normally open switch that will close
when a magnetic field is applied. The magnet located
in the bottom of each hopper will close the switch
when the hopper is in position directly over the reed
switch.
Note: It only takes 1 hopper to be removed or not
detected out of the three hoppers which will result in
the brewer being disabled.
TEST INSTRUCTION
Enter Service Technician Mode and Select
Service icon
Step 1: Select and enter the Sensors tab. The Left,
Center and Right Hopper can be individu-
ally ally tested for hopper detection.
Step 2: Hopper in position will display Detected
and Hopper out of position will display Not
Detected.
Step 3: If a particular hopper position constantly
reads Not Detected, try another hopper in
that position.
Note: The hopper giving the trouble, look
for the magnet on the underside of the
hopper, must be present and be clean for
the magnetism to operate a switch that is
mounted in the top cover directly under the
hopper magnet when the hopper is in
position.
Step 4: Not solved problem - Replace Hopper
Detect Switch
Volt/Ohm Meter - Continuity Check
Step 5: Disconnect or unplug machine from power.
Step 6: Remove right panel to access circuit
boards.
Step 7: Locate High Voltage board and disconnect
J6 connector from the board.
Note: See wiring schematic for hopper
position being tested.
SERVICE
1
36
Hopper Detect
Switch (Reed)
2
6
Continued >