Multicooker will not start a cooking cycle and displays E1 on the control panel.

Safety first: Unplug the multicooker before inspecting the lid or internal parts. Never bypass safety switches.

• Check lid alignment: Open and close the lid several times. Make sure the lid arrow/mark aligns with the body mark and that the lid is fully rotated/locked into position.
• Clean lid sensor area: On many Emeril Lagasse multicookers, a small plastic tab or magnet on the lid engages a switch in the housing. Wipe the lid rim and the mating area on the cooker body with a damp cloth to remove food residue that may block the sensor.
• Inspect lid locking pin: Verify the metal or plastic locking pin on the lid moves freely when you turn the lid. If it is stuck with dried food, soak the lid in warm soapy water (do not immerse the removable inner lid gasket if the manual forbids it) and scrub gently.
• Test with different lid position: Plug the unit back in, close and lock the lid firmly, and start a simple program (e.g., Sauté or Slow Cook). If E1 clears when you press down gently on the lid, the lid switch may be slightly out of position.
• Advanced check (technician level): With the unit unplugged, remove the top cover (if you are qualified and this does not void warranty) and inspect the lid switch assembly and its wiring harness for loose connectors or broken plastic. Reseat any loose plug connectors.

If E1 persists after cleaning and reseating, the lid switch assembly is likely defective and should be replaced by a qualified technician.