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Rocky Mountain Vending

Delivery Sensor Fault Resolution

AMS Sensit II Glass Front Vendor

ComboHigh confidenceExact parts not verified
Back to all issues

Delivery Sensor Fault Resolution

Investigates why the controller believes a product is blocking the delivery bin when it is empty.

Low RiskOperator5-10 min
Delivery sensor3 stepsowner-basic
  • Repeated false 'REMOVE PRODUCT' after clearing

Checklist

Guided Diagnostic Steps

Work from low-risk checks toward technician-level inspection only when evidence supports it.

Printable checklist

You can read or print the route now. The first checkbox click opens the service contact gate.

lead gated
  1. 1

    Inspect and Clean Delivery Sensor

    owner-basiclow

    Using a flashlight, locate the delivery bin sensor(s). Use a soft dry cloth to wipe any dust or grime off the sensor lenses. Ensure no objects are physically leaning against the sensor.

    FlashlightSoft, lint-free cloth

    Expected: The controller recognizes the bin is empty and clears the message.

    Evidence to note: photo

  2. 2

    Check Sensor Harness

    operator-intermediatelow

    Trace the wire from the delivery sensor back to the main controller. Look for obvious cuts, pinches, or disconnected plugs.

    Flashlight

    Expected: Identify a clear physical wiring defect or confirm wiring integrity.

    Evidence to note: photo

  3. 3

    Hand Off to Advanced Technician

    technician-advancedlow

    Stop and hand off. The delivery sensor is clean and wiring appears intact, but the fault persists. Further diagnostics require advanced electrical testing or board replacement.

    Stop conditions
    • Unwilling to proceed with advanced diagnostics

    Expected: Machine serviced by licensed technician.

    Evidence to note: note

Tools for this route

FlashlightSoft, lint-free cloth

Location Help

Where to find this

Use this as orientation before touching the machine. It is location help, not a repair instruction.

Delivery Bin Sensor

Start at the customer delivery bin and product drop path; clear visible product and debris before moving to internal checks.

  • Detects whether a vended product has dropped into the delivery bin to prevent double-vending.
  • Optical or physical sensor
  • Sensor harness
  • Customer delivery bin, flap, chute, or sensor window
cabinet glass frontcontrol board genericwiring harnessvend motor

Parts status

Exact public parts list not verified yet. Use this route to identify the system before ordering.

Candidate areas for part verification

Delivery sensor componentsSensorsCooling componentsDoor and lock hardwarePayment componentsPower components

Other Possible Issues

Switch routes if this symptom is not the closest match.

All issues
CoolingCooling or refrigeration problemDoor / lockDoor, latch, or lock problemPaymentsPayment or money acceptance problemPowerNo power or dead displayWater / fittingsWater Flow or Fitting Service