Safety first: Unplug the appliance and allow it to cool before accessing dryer components.

Step-by-step checks:

Clean lint and ducts: Remove the top cover and any accessible panels to reach the dryer air duct and fan housing. Vacuum and brush out lint deposits thoroughly.
Check condenser/heat exchanger: On Balay condenser-type washer-dryers, locate the condenser unit. If user-removable, take it out and rinse under running water until clean. If internal, clean accessible surfaces and consider professional service for deep cleaning.
Inspect dryer fan: Spin the fan impeller by hand; it should rotate freely. If seized or noisy, replace the dryer fan motor assembly.
Condensate pump (if present): Some models use a small pump to move condensed water. Check for blockages in the condensate tray and pump inlet. Test pump operation and replace if not running.
Re-test drying: After cleaning and any part replacement, run a timed drying program with a small load. If E12 persists, the dryer control or sensors may require professional diagnosis.

Washer-dryer shows E12 during drying; drying performance is poor or stops early

Possible Causes