What does a vending machine error code mean?

Vending machine error codes indicate specific malfunctions detected by the machine's control system. Each code corresponds to a particular issue such as jammed products, sensor failures, or payment system errors.

Can I fix vending machine errors myself?

Many common vending machine errors like product jams and sensor issues can be resolved by following the troubleshooting steps on this site. However, repairs involving refrigeration systems or 115V electrical components should be handled by qualified technicians.

How much does downtime cost for a vending machine?

Vending machine downtime costs vary by location and machine type, but a typical snack/beverage combo machine can lose $5-15 per hour in sales. For high-traffic locations, losses can exceed $25 per hour.

AMS Error Codes

Reviewed by vending machine technicians · Last updated July 30, 2026

4 diagnostic codes · AMS Sensit Glass-Front Vending Machine, Sensit Combo Vending Machine

Err1 — Sensit Combo Vending Machine CRITICAL

Tray home switch error — a product tray did not return to the closed position after vend cycle

Err3 — Sensit Combo Vending Machine CRITICAL

Compressor thermal overload — refrigeration unit shut down due to excessive head pressure or high cu…

Err5 — Sensit Combo Vending Machine CRITICAL

Health safety timer expired — machine locked because internal temperature exceeded FDA food safety l…

ERR7 — AMS Sensit Glass-Front Vending Machine CRITICAL

Lift Motor Fault — the delivery lift motor is not responding or has stalled during a product deliver…

Vending DTC Hub — Independent vending machine diagnostic reference. Error code data compiled from manufacturer service manuals, field technician reports, and publicly available equipment documentation. Not affiliated with any vending machine manufacturer. All brand names are trademarks of their respective owners.