Washer-dryer will not start a cycle; display shows E01 and door symbol may flash.

Safety first: Unplug the Teka washer-dryer combo from the mains before any work. Turn off the water supply.

Step-by-step checks:

• Inspect the door: Open and close the door firmly. Check that the latch hook engages fully with the cabinet. If the door feels loose or misaligned, gently lift and close again. Look for cracked plastic on the latch.
• Clean the door strike area: Wipe away detergent residue or lint around the door latch and strike plate. Build-up can prevent full engagement.
• Test the door lock: With power disconnected, remove the front door seal clamp and gently pull back the gasket to access the door lock assembly. Check the connector for corrosion or loose pins. Reseat the plug firmly.
• Continuity test (advanced DIY): Using a multimeter, test the door interlock terminals for continuity when the latch is engaged (refer to a Teka service diagram for pinout). If the lock does not close electrically, it must be replaced.
• Reassemble and test: Refit the gasket and clamp carefully to avoid leaks. Restore power and try a short wash program to confirm the error is cleared.

Warning: If the error persists after replacing the door lock, the main PCB or wiring may be faulty. This involves live-voltage diagnostics and should be handled by a qualified technician.