Multicooker displays E14 and does not heat; fan (if equipped) may still run.

Safety first: Unplug the unit and allow it to cool completely. Thermal fuses are safety devices; never bypass them.

Steps to diagnose:

• Check ventilation: Ensure the cooker has adequate space around it (at least several centimeters on all sides) and that bottom vents are not blocked by cloth or debris.
• Access heater assembly (advanced): Remove the bottom cover to locate the thermal fuse attached to the heater plate or wiring.
• Test the thermal fuse: With a multimeter, check for continuity across the fuse. An open reading indicates it has blown and must be replaced.
• Investigate cause: Look for signs of severe overheating, such as burnt insulation or discoloration of the heater plate. Address any underlying issues (e.g., running empty, blocked airflow) before replacing the fuse.
• Replace with correct part: Install a Siemens-specified thermal fuse with the exact same temperature and current rating, using proper crimp connectors and insulation.

When to call a technician: If you are not experienced with mains wiring or if the fuse blows again after replacement, seek professional service.