Steba Keep-Warm Temperature Too Low or Not Activating

Keep-warm function does not maintain temperature; food cools down too much.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Keep-warm mode not enabled in settings, Faulty NTC sensor reading too high, Control board not switching heater at low power, Firmware issue

How to Fix / Troubleshooting

Safety first: Unplug before internal checks.

Steps to improve keep-warm performance:

  • 1. Confirm mode: Ensure keep-warm is actually active (indicator light on) and not just the cooker in standby.
  • 2. Test with water: Fill pot with water, activate keep-warm, and measure temperature after 1–2 hours. If water is near room temperature, heating is not occurring.
  • 3. Inspect NTC sensor: Check for loose mounting or poor contact with the heating plate. Tighten or remount as needed.
  • 4. Replace NTC or PCB: If the sensor is faulty or the PCB does not energize the heater at low power, replace the NTC sensor first, then the main control board if needed.

Until repaired, do not rely on keep-warm for food safety; consume food promptly after cooking.

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Repair Difficulty

Medium 3/5

Required Part

Bottom NTC Temperature Sensor Assembly
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