Zanussi heat pump dryer runs but there is little or no warm air from the drum, and drying is very slow, no error code.

Safety first: Unplug the dryer before cleaning internal components. Do not attempt to open the sealed refrigeration system yourself.

• 1. Clean filters and condenser: Remove all lint filters and the condenser unit. Clean thoroughly to restore airflow.
• 2. Access coil area: Remove the lower front or side panel to view the evaporator and condenser coils. Carefully vacuum lint and dust from the fins without bending them.
• 3. Check fan operation: During a test run (with panels safely in place), listen for the internal fan. If the fan is not running, the fan motor may be faulty and require replacement.
• 4. Monitor compressor: If the compressor does not start or runs briefly then stops, there may be a sealed system issue or compressor fault. These require specialized tools and must be handled by a refrigeration-trained technician.
• 5. Professional service: If cleaning does not restore normal heating, contact Zanussi service for heat pump diagnostics and possible sealed system repair.