E6 is displayed and the cooker does not heat or only heats briefly.

Safety first: Unplug the cooker before any inspection. Do not attempt to operate with the base opened unless you are qualified.

• Check for obvious external damage: Smell for burnt odors from the base and look through the vents for signs of charring or melted plastic. If present, discontinue use immediately.
• Test basic functions: Try a low-heat mode like Keep Warm. If E6 appears across all modes and the pot never warms, the heater circuit is likely open.
• Avoid repeated resets: Repeatedly cycling power will not fix a failed heater and may stress other components.

Repair of E6 faults typically requires replacing the heating element assembly, thermal fuse, or main control board. This involves mains-voltage wiring and should be performed only by a qualified appliance technician.