- Why is the hood so noisy?
- Blower motor makes a loud noise whether on low or high speed
- Vent hood whistles
- Rheostat on fan motor will not lower enough to reduce excessive noise
Steps to Verify Issue:
Many factors could contribute to poor ventilation noise.
- Ensure the ventilation blower meets Wolf's CFM requirements for the unit being ventilated.
- Specific causes of excessive noise include:
- A 90° elbow directly off the ventilation hood's transition
- Less than 1' of straight ductwork off the ventilation hood's transition
- An unusual number of 45° or 90° elbows in the ductwork
- Multiple transitions within the ductwork
- A duct run less than 40'
- Smaller ductwork than recommended
- Ductwork that is not rigid
- Metal tapping noise may be damper being forced open by wind and a secondary damper installation may be required to resolve.
- If an in-line or remote blower is installed, ensure the electrical wiring from the blower to the ventilation hood is properly secured.
- If any of the above do not comply with Wolf guidelines, a qualified HVAC professional may need to review the ventilation installation.
For further ventilation information, refer to the Wolf Ventilation Guide.
DID THIS ANSWER YOUR QUESTION?
Thank you for your request. A Customer Care representative will contact you.
An error occurred. We were unable to submit your request.
We're standing by with answers
Whether you're shopping for appliances or have questions about those you already own, we've got the resources you need. Talk directly to a customer care expert at the Sub-Zero, Wolf, and Cove service center, or connect with an appliance consultant at an official showroom near you. Get quick answers online, or reach a certified service provider or installer. And much more.
Call us at (800) 222-7820