Bunn Fast Cup Series Service & Repair Manual page 50

LOWER FRONT PANEL
Volt/Ohm Meter - Voltage Check
Step 6: Disconnect or unplug machine from power.
Step 7: Remove right panel to access circuit
boards.
Step 8: Locate J16 connector on the Input/Output
board.
Step 9: Connect power to machine.
Step 10: Set voltmeter on D/C voltage. Install red
meter lead on terminal J16-6 BRN wire
(positive) and black meter lead on J16-5
BLK wire (negative) terminal.
Step 11: Home position, the voltage reading will be
24.0VDC.
Signal
At Home Position - J16-14 Blue wire -
J16-5 BLK wire, 0.00VDC.
Not Home Position - J16-14 Blue wire -
J16-5 BLK wire, 4.0VDC.
PART RELATES TO THE FOLLOWING SYMPTOMS
• Active Notice - E-079: Piston Error Stall Up Not
Home
208VAC 2 WIRE + GND
SINGLE PHASE
56640.0000A 08/19 ©2019 BUNN-O-MATIC CORPORATION
SERVICE
OPTIONAL
50
8
10
Proximity Sensor
At Home
11
Not Home
5