Toshiba Keep-Warm Control / Sensor Drift

Keep-warm function turns off too soon or does not maintain food at a safe hot temperature.

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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

Bottom sensor reading too low, Firmware logic issue, Poor thermal contact between pot and heater, Inner pot not original Toshiba type

How to Fix / Troubleshooting

Safety: Do not consume food kept at lukewarm temperatures for extended periods; risk of bacterial growth.

  • 1. Use original pot: Ensure you are using the Toshiba inner pot supplied for your model.
  • 2. Clean contact surfaces: Remove residue from the heater plate and pot bottom.
  • 3. Sensor check: Inspect and, if necessary, replace the bottom NTC sensor as described for E1.
  • 4. Functional test: After repairs, test keep-warm with water and measure temperature after 1–2 hours; it should remain above 60°C (140°F).

If keep-warm remains unreliable, main PCB replacement may be required.

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Repair Difficulty

Medium 3/5

Required Part

Bottom NTC Temperature Sensor Assembly
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