E6 error appears and cooker does not heat; sometimes accompanied by a burning smell previously.

Safety first: Unplug the cooker immediately. If you smelled burning, do not continue using the appliance until it has been inspected.

• Visual inspection: After the unit has cooled, remove the inner pot and inspect the heating plate for burn marks, cracks, or melted insulation around the centre.
• Check for tripped RCD/fuse: If your household breaker or fuse tripped when E6 appeared, this strongly suggests a shorted heating element or wiring.
• Access base (if user-serviceable): With the unit unplugged, remove the bottom cover screws and look for burnt wires or loose spade connectors on the heating element terminals.
• Do not bypass safety devices: Never bridge or bypass thermal fuses or thermostats to "test" the heater. This is dangerous and can cause fire.
• When to replace: If the wiring is intact but the element shows visible damage or tests open/short (requires a multimeter), replace the main heating element / heating plate assembly. If the element is fine, the main PCB (triac/relay) is likely faulty and should be replaced by a professional.