E9 is displayed and the cooker does not heat; sometimes accompanied by a faint burning smell previously.

Safety first: Unplug the cooker. Do not attempt to bypass a thermal fuse; it is a critical safety device.

• Access the heater circuit: Remove the bottom cover to expose the heating element and wiring. Locate the thermal fuse (small cylindrical component in heat-resistant sleeve, in series with the heater).
• Check for visible damage: Look for burnt insulation, melted plastic, or discoloration around the heater and fuse.
• Continuity test (advanced): With a multimeter, test continuity across the thermal fuse. If it is open (no continuity), it has blown and must be replaced with the same temperature and current rating.
• Inspect heater: Measure resistance of the heating element. A very low resistance or visible damage may indicate a shorted heater, which must be replaced before fitting a new fuse.
• Improve ventilation: Ensure the cooker is used on a hard, flat surface with adequate space around it. Clean dust from ventilation slots in the base.