Washer-dryer combo overheats during drying; very hot door and cabinet; E11 displayed and drying stops.

Safety first: Unplug the appliance and allow it to cool completely before working on the dryer section.

Step-by-step checks:

• Clean all filters: Remove any accessible lint filters and the condenser (if fitted). Rinse and dry thoroughly. Remove lint from around the door seal and duct openings.
• Inspect dryer fan: Access the dryer fan housing (usually at the rear or side). Check that the fan impeller is not obstructed by lint or debris and that it spins freely.
• Test fan motor: With the machine running a drying cycle (and panels safely in place), listen for the fan. If it does not run, unplug the machine and test the fan motor for continuity and free rotation. Replace if faulty.
• Check thermostats: Test the high-limit thermostat and cycling thermostat for correct operation with a multimeter. Replace any that are stuck closed or open as appropriate.

After cleaning and replacing faulty parts, run a short drying cycle and monitor temperature. Persistent E11 indicates a possible control board fault and should be investigated by a technician.