Test the motor and relay
Trigger the selection and listen for the motor relay, then check for motor voltage at the column before assuming the board is at fault.
T-01
Troubleshooting path · Delivery
Product does not drop
Most no-vend calls are mechanical delivery faults. Follow the product's path from motor to delivery sensor before touching the control board.
Other common issues
Not the right symptom?
Seat and inspect the spiral
Reseat the spiral on its motor shaft and confirm the product sits inside the pitch; a skewed spiral can turn freely without vending.
Verify the selection mapping
Vend every column from setup mode and confirm the keypad or card mapping still matches the physical column numbering.
Check the delivery sensor
Clear the delivery bin and test the sensor with the door open so a stuck or blocked sensor is not silently cancelling the drop.
Still stuck?
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