Dryer drum turns but clothes take very long to dry, exhaust air is only mildly warm

Safety first: Unplug the dryer before removing any covers or ducts.

Steps to check:

• Clean lint filter: Remove and wash the filter with warm soapy water if it has a waxy film (from fabric softeners). Dry fully before refitting.
• Clean condenser: On condenser models, remove the condenser and flush it thoroughly under running water to remove lint.
• Inspect venting: On vented models, disconnect the vent hose and check for lint build‑up, kinks, or crushed sections. Clean or replace as needed. Check the wall vent flap opens freely.
• Test with hose removed: Run a short cycle with the vent hose temporarily disconnected (exhausting into a safe, well‑ventilated area). If drying improves, the external venting is restricted.