There is no single cleaning interval that fits every dryer vent. A short, straight route used occasionally can behave differently from a long concealed vent serving a busy household.
Conditions that can increase attention
- Large or frequent laundry loads
- A long vent with multiple turns
- The dryer located far from the exterior wall
- Flexible material that is crushed or damaged
- Pets and fabrics that produce more lint
- A termination flap that does not open freely
Watch performance, not just the calendar
Longer drying times, unusual heat, a humid laundry room, lint behind the dryer, or weak exterior airflow can justify inspection sooner.
Maintenance still begins at home
Clean the lint screen after every load, keep the area around the dryer clear, and avoid pushing the appliance against the vent connection.
Stop using the dryer and seek qualified help if you notice smoke, scorching, a strong burning smell, or abnormal heat.