Delivery Optics and Vend Confirmation Diagnostic
Vendo V 30 / V 40 Vue (Coke)
Delivery Optics and Vend Confirmation Diagnostic
This diagnostic investigates failures where the machine appears to have dispensed the product, but the control system does not receive the confirmation signal.
Qualified technician handoff: stop before live electrical testing, sealed-system refrigeration work, compressor service, or protected-compartment access unless a qualified technician is handling the work.
- Optics hardware appears functional but controller does not register vend completion.: Escalate to technician with controller diagnostic capability. Possible controller input fault.
- Safety stop triggered.: Cease work. Secure machine. Document and escalate.
- If the optics hardware seems functional but the controller fails to register the vend completion, escalate to a technician with advanced controller diagnostic capability, as this suggests a potential controller input fault.
- If a safety stop is triggered during this diagnostic, cease all work, secure the machine, and escalate to a supervisor and qualified technician for further assessment.
Checklist
Guided Diagnostic Steps
Work from low-risk checks toward technician-level inspection only when evidence supports it.
You can read or print the route now. The first checkbox click opens the service contact gate.
- 1
Ensure the machine is unplugged and all debris is cleared from the pr...
operator-intermediatehighEnsure the machine is unplugged and all debris is cleared from the product drop area.
Digital MultimeterInsulated Screwdriver SetFlashlight or Work LightSoft Dry ClothStop conditions- If the optics hardware seems functional but the controller fails to register the vend completion, escalate to a technician with advanced controller diagnostic capability, as this suggests a potential controller input fault.
- If a safety stop is triggered during this diagnostic, cease all work, secure the machine, and escalate to a supervisor and qualified technician for further assessment.
Expected: Initial condition is documented before deeper diagnosis.
Evidence to note: note
- 2
Gently clean both the emitter and detector lenses using only a soft,...
operator-intermediatehighGently clean both the emitter and detector lenses using only a soft, dry cloth.
Digital MultimeterInsulated Screwdriver SetFlashlight or Work LightSoft Dry ClothStop conditions- If the optics hardware seems functional but the controller fails to register the vend completion, escalate to a technician with advanced controller diagnostic capability, as this suggests a potential controller input fault.
- If a safety stop is triggered during this diagnostic, cease all work, secure the machine, and escalate to a supervisor and qualified technician for further assessment.
Expected: Initial condition is documented before deeper diagnosis.
Evidence to note: note
- 3
Remove any visible debris from the product collection area.
operator-intermediatehighRemove any visible debris from the product collection area.
Digital MultimeterInsulated Screwdriver SetFlashlight or Work LightSoft Dry ClothStop conditions- If the optics hardware seems functional but the controller fails to register the vend completion, escalate to a technician with advanced controller diagnostic capability, as this suggests a potential controller input fault.
- If a safety stop is triggered during this diagnostic, cease all work, secure the machine, and escalate to a supervisor and qualified technician for further assessment.
Expected: Result is documented before continuing the route.
Evidence to note: note
- 4
Inspect the wiring harness connections leading from the optics sensor...
operator-intermediatehighInspect the wiring harness connections leading from the optics sensors for a qualified technician.
Digital MultimeterInsulated Screwdriver SetFlashlight or Work LightSoft Dry ClothStop conditions- If the optics hardware seems functional but the controller fails to register the vend completion, escalate to a technician with advanced controller diagnostic capability, as this suggests a potential controller input fault.
- If a safety stop is triggered during this diagnostic, cease all work, secure the machine, and escalate to a supervisor and qualified technician for further assessment.
Expected: Result is documented before continuing the route.
Evidence to note: note
- 5
Reseat the emitter and detector connectors firmly.
operator-intermediatehighReseat the emitter and detector connectors firmly.
Digital MultimeterInsulated Screwdriver SetFlashlight or Work LightSoft Dry ClothStop conditions- If the optics hardware seems functional but the controller fails to register the vend completion, escalate to a technician with advanced controller diagnostic capability, as this suggests a potential controller input fault.
- If a safety stop is triggered during this diagnostic, cease all work, secure the machine, and escalate to a supervisor and qualified technician for further assessment.
Expected: Result is documented before continuing the route.
Evidence to note: note
- 6
Initiate a test vend cycle and observe the product drop.
operator-intermediatehighInitiate a test vend cycle and observe the product drop.
Digital MultimeterInsulated Screwdriver SetFlashlight or Work LightSoft Dry ClothStop conditions- If the optics hardware seems functional but the controller fails to register the vend completion, escalate to a technician with advanced controller diagnostic capability, as this suggests a potential controller input fault.
- If a safety stop is triggered during this diagnostic, cease all work, secure the machine, and escalate to a supervisor and qualified technician for further assessment.
Expected: Result is documented before continuing the route.
Evidence to note: note
- 7
Monitor the controller's response to the product drop event.
operator-intermediatehighMonitor the controller's response to the product drop event.
Digital MultimeterInsulated Screwdriver SetFlashlight or Work LightSoft Dry ClothStop conditions- If the optics hardware seems functional but the controller fails to register the vend completion, escalate to a technician with advanced controller diagnostic capability, as this suggests a potential controller input fault.
- If a safety stop is triggered during this diagnostic, cease all work, secure the machine, and escalate to a supervisor and qualified technician for further assessment.
Expected: Result is documented before continuing the route.
Evidence to note: note
- 8
Verify the optical path is completely unobstructed.
operator-intermediatehighVerify the optical path is completely unobstructed.
Digital MultimeterInsulated Screwdriver SetFlashlight or Work LightSoft Dry ClothStop conditions- If the optics hardware seems functional but the controller fails to register the vend completion, escalate to a technician with advanced controller diagnostic capability, as this suggests a potential controller input fault.
- If a safety stop is triggered during this diagnostic, cease all work, secure the machine, and escalate to a supervisor and qualified technician for further assessment.
Expected: Result is documented before continuing the route.
Evidence to note: note
Tools for this route
Parts status
Exact public parts list not verified yet. Use this route to identify the system before ordering.
Candidate areas for part verification
Other Possible Issues
Switch routes if this symptom is not the closest match.