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NEW ELECTRONICS PLATFORM BEVMAX 4 TROUBLESHOOTING
TROUBLESHOOTING DIAGNOSTIC LIGHTS
With the New Electronics Platform BevMax 4, troubleshooting is simpler, but it is important to know how to
follow the clues the Vending Machine is presenting. Utilizing error codes while focusing on the Cabinet Control
Boards controlling each motor or main component will lead you to a conclusion quickly.
The inner workings of the New Electronics Platform BevMax 4 are greatly simplified. The AC Distribution Box
sends AC Voltage through a Cabinet Control Environmental Board contained within the AC Distribution Box to
the Refrigeration Unit, Evaporator Fan Motor, and the Power Supply.
In turn, the Power Supply returns 24VDC to the Cabinet Control Environmental Board within the AC Distribution
Box, which sends both 24VDC and 5VDC to the Vending Machine Controller (VMC). The VMC then sends both
24VDC and 5VDC to the X, Y, Cup, and Port Cabinet Control Boards. These Cabinet Control Boards run on 5VDC
while allowing 24VDC to pass through to power the Motor or main component each controls.
There are 7 Diagnostic Lights across the top of the VMC. These inform the technician of the state of
components when in Normal Mode, Port Test Mode, Cup Test Mode, and Position Test Mode. Use the key to
decipher the meaning of the lights to point you in the right direction immediately.
VMC Diagnostic Lights
RS 485 Communication Harness A – White wire
RS 485 Communication Harness B – Blue wire
24VDC Harness – Red/Green wire
5VDC Harness – Yellow wire
Ground Harness – Black wire
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