Heat pump dryer runs but produces only lukewarm air and drying is very slow

Safety first: Unplug the dryer before cleaning internal components.

• Clean all filters and heat exchanger: Remove and wash the lint filter, any secondary filters, and the heat exchanger thoroughly. Allow to dry before refitting.
• Check fan operation: Listen for strong airflow at the drum outlet. Weak airflow may indicate a failing fan motor or blocked ducts.
• Ensure adequate room temperature: Heat pump dryers perform poorly in very cold rooms. Move the dryer to a warmer location if necessary.
• Professional diagnosis: If cleaning and airflow checks do not improve performance, the heat pump system may require professional service.