Washer-dryer combo dryer takes a very long time to dry or never fully dries clothes.

Safety first: Unplug the unit before accessing internal ducts. Ensure the drum is cool.

Step-by-step checks:

• 1. Check wash spin: Verify that the washer section is spinning at high speed and not leaving clothes overly wet. If not, troubleshoot spin issues first.
• 2. Clean lint and ducts: Thoroughly clean the internal dryer duct, blower wheel, and lint filter housing. Even small restrictions can greatly extend dry times.
• 3. Avoid overloading: Do not exceed the recommended drying load size. Overloading reduces airflow and drying efficiency.
• 4. Moisture sensor: Locate the moisture sensor bars inside the drum (often near the front). Clean them with a soft cloth and mild detergent to remove fabric softener film that can cause false readings.
• 5. Heater check: If drying is weak but not completely cold, test the heater and thermostats as in the "Dryer No Heat" entry; a partially failing heater can cycle off too soon.