Fan - Bunn Fast Cup Series Service & Repair Manual

REAR PANEL

Fan

Purpose: The fan mounted in the rear under the tank
module operates continuously. The fan circulates or
moves air within the cabinet/housing and exhausts air
out the bottom of the machine.
TEST INSTRUCTION
Volt/Ohm Meter - Voltage Check
Step 1: Disconnect or unplug machine from power.
Step 2: Remove right & rear panel to access power
board & cabinet fan.
Step 3: Connect power to machine.
Step 4: Enable main On/Off switch.
Step 5: Check 24VDC output at the Input/Output
board.
Step 6: Set voltmeter on D/C voltage. Install red
meter lead on terminal J23-5 (+) RED
wire terminal and black meter lead on
J19-5 (-) BLK wire terminal.
Step 7: The reading should be 24.0VDC.
Step 8: No 24.0VDC - Check for loose wire con-
nection between fan connector and J19 &
J23 connector on I/O Board before replac-
ing I/O Board.
Yes 24.0VDC - Replace failed fan.
PART RELATES TO THE FOLLOWING SYMPTOMS
• Irregular or higher internal cabinet temperature
• Currently no error or event code exists for the fan
SERVICE
87
8
OPTIONAL