E3 error appears shortly after starting high-temperature programs (pressure cook, fry, sauté); unit stops heating.

Safety: Unplug the multicooker and allow it to cool completely. Do not attempt to reset thermal devices while the unit is hot.

• 1. Check pot and heater plate: Remove the inner pot and inspect the heater plate for burnt food, oil, or warped areas. Clean the plate with a soft cloth and mild detergent (no abrasives). Ensure the bottom of the inner pot is flat and clean.
• 2. Verify correct pot: Use only the original Toshiba inner pot designed for your model. Incorrect or deformed pots can cause hot spots and trigger E3.
• 3. Inspect thermal cutoff devices: Access the underside of the heater plate by removing the bottom cover. Locate the thermal fuse and/or bimetal thermostat attached to the heater assembly. Check for signs of overheating (discoloration, melted insulation).
• 4. Continuity test: With the unit unplugged, test the thermal fuse and thermostat with a multimeter. A blown thermal fuse will show open circuit and must be replaced with the exact temperature and current rating specified for Toshiba multicookers.
• 5. Check airflow and vents: Ensure side and bottom ventilation slots are not blocked by dust or cabinets. Overheating can occur if heat cannot escape.
• 6. If all hardware is OK: The main PCB may be misreading temperature and shutting down early. Replacement of the main control board may be required.

Never bypass a thermal fuse or thermostat; they are critical safety components.