Dryer takes too long to dry; cycles run much longer than usual and clothes are still damp.

Safety first: Unplug the dryer before deep cleaning internal parts.

• Clean lint filter thoroughly: Remove all lint and wash the filter with warm soapy water if it is coated with residue. Dry completely.
• Clean condenser (condenser/heat pump models): Remove the condenser from the bottom/front compartment. Rinse under running water until clear, then let it dry before reinstalling.
• Check exhaust duct (vented models): Disconnect the duct from the dryer and wall. Remove lint buildup and straighten any kinks. Ensure the outside vent flap opens freely.
• Inspect door seal: Check the door gasket for gaps or damage that could cause heat loss. Replace if worn.
• Test heating performance: After cleaning, run a small load. If drying is still poor, the heater may be weak or cycling off too early due to a faulty thermostat, requiring further diagnosis.