Dryer runs but takes too long to dry clothes, even on high heat

Safety First: Unplug dryer and shut off gas before disconnecting venting.

Steps:

• Clean lint filter: Wash the lint screen with warm soapy water if coated with residue. Dry thoroughly.
• Check venting: Disconnect the vent and run a timed dry cycle with a small load. If drying improves, the vent is restricted and must be cleaned or shortened.
• Inspect vent run: Clean the entire vent path to the outside using a vent brush. Avoid long runs and excessive elbows.
• Check cycling thermostat: If airflow is good but temperatures are low, test the cycling thermostat and replace if it opens too early.