Multicooker beeps and shows E2 shortly after starting a cooking program.

Safety first: Unplug the unit and let it cool fully. Do not continue using the cooker if you suspect internal moisture or a short circuit.

• 1. Inspect for spills: Remove the inner pot and check the heating plate and sensor area for signs of boiled-over food or liquid. Gently wipe with a dry cloth. Allow the cooker to air-dry for several hours if moisture is present.
• 2. Check for scorching or burn marks: Look for darkened or burned areas around the central sensor and heating plate. Burn marks may indicate overheating or a short.
• 3. Access the bottom sensor (advanced): With the unit unplugged, remove the bottom cover. Inspect the NTC sensor wiring for melted insulation, exposed copper, or pinched wires. Correct any pinched routing and re-insulate exposed sections with high-temperature electrical tape.
• 4. Measure sensor resistance: Using a multimeter, measure resistance across the NTC leads at room temperature. A reading near 0Ω indicates a shorted sensor that must be replaced.
• 5. Replace faulty parts: If the sensor is shorted, install a new Chefman-compatible bottom NTC sensor assembly. If the sensor tests normal but E2 persists, the main control PCB may be misreading the signal and require replacement.

Do not bypass or jumper the sensor; this is a critical safety component that prevents overheating.