Safety first: Unplug the multicooker before any disassembly. Avoid working on live circuits.

Basic reset: Unplug the unit for at least 15 minutes. Plug it back into a different outlet (preferably one with surge protection) and attempt to power on and select a simple program.
Check for moisture: If the cooker was recently cleaned aggressively or used under a cabinet, moisture may have entered the control panel. Allow the unit to air dry for 24 hours in a warm, dry room before retesting.
Inspect display panel (advanced): If comfortable, remove the top cover or front panel to access the display/control board. Check that any ribbon cables or connectors between the display and main board are fully seated and not damaged.
Do not short components: Avoid touching exposed solder joints or attempting to bridge components; this can cause further damage.
Professional repair: Persistent E6 usually indicates a failed control board that must be replaced as an assembly.

Display shows E6 and the cooker will not start or stops mid-cycle.

Possible Causes