Multicooker heats very slowly or never reaches the set temperature; food remains undercooked.

Safety first: Unplug the cooker and let it cool before opening the base.

Steps to improve heating performance:

• 1. Confirm correct mode: Ensure you are using an appropriate program (e.g., pressure or high-temperature mode) for the recipe. Some Steba modes are intentionally gentle.
• 2. Test with water: Fill the pot with 1–2 liters of water and start a high-heat program. If the water does not reach a near-boil within 15–20 minutes, heating is inadequate.
• 3. Inspect element connections: Remove the base and check the heating element terminals. Tighten any loose spade connectors and clean off oxidation with contact cleaner.
• 4. Measure element resistance: Compare measured resistance to the specification for your model. A significantly higher resistance than normal can indicate internal element damage.
• 5. Check heater relay: Listen for a click when heating should start. If there is no click or the relay is visibly burnt, the main PCB may need replacement.

If the element is defective, replace the main heating element. If the element is good but power is intermittent, replace the main control board.