How to stop high-pitched noise from air vents
High-pitched vent noise and loud blowers exceeding 65 decibels can make indoor spaces difficult to tolerate. This piercing sound disturbs household occupants and causes pets, such as dogs, to become sensitive to the environment. Slowing down the blower or quieting the system can help reduce these disruptive noise levels.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1opening all registers
- 2Adjusting circuit board dip switches
- 3Having a technician check static pressures and airflow tables
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
Where this came up
People with this problem also raised
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