Service Issues
VendnetUSA 3515 / 3515A
Choose the problem first, then open the focused route for tools, safety notes, locator help, parts status, and checklist steps.
Issue Finder
What Problem Are You Seeing?
Search symptoms, filter by system, then open the matching route.
Persistent Error Code Diagnostic
This guide helps identify the meaning of a displayed error code, isolates the malfunctioning subsystem, and verifies proper function after any corrective action has been taken.
Coin Mechanism Not Accepting Coins
This procedure diagnoses coin acceptance failures by checking for physical blockages, the condition of the coin path, compatibility of the mechanism, and communication with the main controller.
Machine Completely Dead — Power Input Diagnostic
This diagnostic systematically checks the entire power path, from the wall outlet back to the machine's main control board, to determine why the unit has no visible power.
Display Blank — Display and Harness Diagnostic
This diagnostic systematically checks the entire power path, from the wall outlet back to the machine's main control board, to determine why the unit has no visible power.
Single Selection Motor Does Not Run
This diagnostic pinpoints why a single product dispensing motor fails to activate, checking the motor itself, the connecting wiring, and the controller's output signal.
Door, latch, or lock problem
Use this when the door, latch, lock, gasket, or seal is the visible problem.
Machine Context
Areas This Machine May Use
Use these areas as orientation only. Open a specific issue before following diagnostic steps.