Multicooker beeps and displays E1 shortly after starting a program; heating does not begin or stops immediately.

Safety first: Unplug the Steba multicooker and allow it to cool completely before opening any covers. Never work on the unit while it is connected to mains power.

Steps to check and correct E1:

• 1. Remove inner pot and inspect sensor: Take out the stainless or non-stick inner pot. In the center of the heating plate you should see a small metal disc or probe (the NTC sensor). Make sure it is not bent, contaminated with burnt food, or physically broken.
• 2. Clean the sensor area: Wipe the sensor and surrounding plate with a soft cloth slightly dampened with mild detergent. Remove any burnt residue that may prevent proper contact with the pot. Dry thoroughly.
• 3. Check for loose wiring (requires opening the base): Turn the cooker upside down on a soft cloth. Remove the base screws and carefully lift the bottom cover. Locate the two thin wires from the bottom sensor (NTC) going to the main control board. Ensure the plug is fully seated on the PCB and that no wire is broken or pinched.
• 4. Inspect the NTC resistance (for users with a multimeter): Disconnect the NTC plug from the PCB. Measure resistance across the two NTC leads. A typical Steba NTC will read between 50–150 kΩ at room temperature (exact value depends on model). If it reads open (infinite) or near 0 Ω, the sensor is defective.
• 5. Reassemble and test: Refit the base cover, tighten screws, reinstall the inner pot, and plug the unit back in. Run a short program (e.g., warm or low-temperature mode) with a small amount of water to test.
• 6. Replace the sensor if needed: If E1 persists and the NTC is open or physically damaged, replace the bottom NTC temperature sensor assembly with a compatible Steba spare part. This usually involves unscrewing or unclipping the sensor from the heating plate and routing the new harness to the PCB.

When to call a technician: If you are not comfortable opening the base or measuring resistance, or if the PCB connector or tracks appear burnt, contact an authorized Steba service center.