Dryer heats up very slowly; drying times are excessively long; E61 may be stored as a service code.

Safety first: Unplug the dryer before cleaning internal components.

• 1. Deep clean airflow path: Clean lint filter, condenser/heat exchanger, and any accessible ducts thoroughly. Even partial blockages can reduce heating efficiency.
• 2. Check ambient temperature: Heat pump dryers perform poorly in very cold rooms (e.g., unheated garages). Move the dryer to a warmer location if possible.
• 3. Inspect door seal: Ensure the door gasket is intact and sealing properly to prevent heat loss.
• 4. When to call a technician: If drying remains slow, the heater, compressor, or NTC sensors may require professional testing and replacement.