A:Answer Hi there!
Remove lint from the duct by hand and then vacuum the inside of the duct. Use hose extensions, if available, to vacuum out as much of the duct as you can. Go outside the house and remove the exterior vent cover. Clean out the dryer vent from the outside using a vacuum.
If you have any other concerns, you may use the link below to reach us.
Insignia Support
Dina
Please visit https://www.insigniaproducts.com/contact-us