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Drink fan noise issues
Diagnose noisy or failing fans.
Updated Feb 9, 2026
Overview
Drink machines rely on refrigeration performance, column alignment, and strong door seals. Electrical or cooling issues often present as temperature drift. Diagnose noisy or failing fans.
Diagnostics
- Check door gasket seal and condenser cleanliness.
- Verify temperature sensor readings and controller setpoints.
- Inspect stack/column alignment for mis-vends.
Resolution steps
- Clean condenser coils and ensure airflow clearance.
- Replace faulty temp probes or relays.
- Align columns and adjust shims for product fit.
Preventive maintenance
- Vacuum coils monthly in dusty locations.
- Log temperature readings by location.
- Rotate stock to reduce heat load.
When to contact support
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