Service Issues
USI 3502
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.
Compressor Not Running Diagnostic Flow
Isolation of refrigeration control failures when the compressor does not start.
No Power Diagnostic Flow
Systematic isolation of power input and supply faults from wall outlet to low-voltage output.
Product Vend Mechanical Diagnostic Flow
Isolation of mechanical and electrical faults when a selection fails to deliver product.
Door, latch, or lock problem
Use this when the door, latch, lock, gasket, or seal is the visible problem.
Payment or money acceptance problem
Money, validator, coin, bill, or card-reader clues point to this route.
Water Flow or Fitting Service
Use this when water taste, pressure, filters, tubing, fittings, or leaks are involved.
Machine Context
Areas This Machine May Use
Use these areas as orientation only. Open a specific issue before following diagnostic steps.