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Machine Technical Issues
Fix common hardware issues, error codes, refrigeration, and cash acceptance problems.
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Machine Technical IssuesUpdated Feb 24, 2026
Why does my vending machine show 'Exact Change Only' and how to fix it
Learn why your vending machine displays 'Exact Change Only' and how to resolve it to ensure smooth transactions.
vending machineexact change onlytroubleshootingcoin mechanismmaintenance
Machine Technical IssuesUpdated Feb 9, 2026
Machine displays “Exact Change Only”
Resolve low coin tubes and adjust escrow/coin settings.
coinschangepricing
Machine Technical IssuesUpdated Feb 9, 2026
Spiral motor does not rotate
Check motor wiring, vend switch alignment, and selection pricing settings.
motorvendselection
Machine Technical IssuesUpdated Feb 9, 2026
Machine shows “Out of Service”
Quick checks for door switch, temperature, and payment device errors.
servicedoor switcherrors
Machine Technical IssuesUpdated Feb 9, 2026
Refrigeration not cooling or frosting over
Diagnose airflow, condenser coil cleaning, door seals, and thermostat calibration.
refrigerationtemperaturemaintenance
Machine Technical IssuesUpdated Feb 9, 2026
Coin mechanism keeps jamming
Common causes, cleaning steps, and how to verify coin tube levels.
coinsjammechanism
Machine Technical IssuesUpdated Feb 9, 2026
Bill validator keeps rejecting bills
Step-by-step checks for jammed transport, dirty sensors, and denomination settings.
cashvalidatorerror codes