Why Are My Clothes Still Damp After the Dryer Stops?
Damp clothes after a full dryer cycle can result from airflow, load size, settings, or a heating problem.
By Everyday Home Advice Editorial Team

Damp clothes after a full dryer cycle can result from airflow, load size, settings, or a heating problem.
Was the load too large?
Clothes need room to tumble.
Was the right cycle selected?
Some automatic cycles may behave differently depending on load and sensor readings.
Check the lint screen
Clean it according to the dryer manufacturer's instructions.
Check exhaust airflow
Restricted exhaust airflow can make drying take much longer and may create a fire hazard.
Is the dryer heating?
If the drum turns but there's no heat, that's a different problem.
Don't ignore burning smells
Stop using the dryer if you notice a burning odor, smoke, or unusual overheating. Find Local Appliance Repair Help