Drying performance poor; E12 displayed; condenser or heat exchanger warning

Safety first: Unplug the appliance before cleaning internal ducts.

Step-by-step checks:

• 1. Clean the condenser:
  • Open the condenser flap at the bottom front.
  • Remove the condenser unit and rinse thoroughly under running water until clear.
  • Allow to drain and dry before reinstalling.
• 2. Clean air channels and filters:
  • Remove and clean the door lint filter.
  • Vacuum lint from visible ducts and around the condenser housing.
• 3. Clean moisture sensor bars:
  • Locate the metal strips inside the drum (usually near the door opening).
  • Wipe them with a cloth and a little vinegar or mild detergent to remove residue.
• 4. Check airflow sensor (if present):
  • Inspect wiring and sensor placement in the duct.
  • Replace if damaged or reading incorrectly (requires service data).

When to call a technician: If E12 persists after thorough cleaning, internal ducting or sensors may need professional inspection.