Ferroli furnace produces a whistling or high-pitched noise during operation.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety: Whistling can indicate combustion issues. If accompanied by smell of gas or soot, turn off gas and power and contact a professional.
User checks:
- Check flue terminal: Ensure no objects are close to the Ferroli flue outlet that could cause airflow noise.
- Secure panels: Make sure all casing panels and flue clamps are tight.
Professional help: Gas pressure adjustment, burner cleaning, and fan/flue tuning must be done by a licensed technician.
Repair Difficulty
Required Part
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