Why is the fan weak on my Vissani QR254?
- JJessica TaylorAug 10, 2025
If the fan on your Vissani Ventilation Hood seems weak, start by checking that the duct size used is at least 7 inches (177 mm) round. Then, inspect the duct for any clogs or debris and make sure the tight mesh on the wall isn't restricting airflow. Also, verify that the damper unit is opening properly and that no birds or animals have nested in the duct.