E2
ProCook
Shorted Temperature Sensor (NTC) or Overheat Detection
E2 error appears during preheat or mid-cooking and the unit shuts off heating.
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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
NTC sensor shorted internally, NTC wires shorted to chassis, Moisture or condensation on sensor connector, Failed main PCB temperature input circuit
How to Fix / Troubleshooting
Safety first: Unplug the appliance and let it cool fully. Do not operate with suspected electrical shorts.
- Check for moisture: Remove the inner pot and inspect the heating plate area. Wipe away any spilled liquid or condensation. Allow the cooker to dry for several hours before retesting.
- Inspect sensor wiring: Access the bottom panel (if safe and permitted by warranty). Trace the NTC sensor wires from the heating plate to the PCB. Look for melted insulation, pinched wires, or signs of liquid ingress.
- Clean connector: If the NTC connector shows signs of moisture or corrosion, gently dry it and clean with a small amount of contact cleaner on a cotton swab. Let it dry completely.
- Test operation: Reassemble, add water to the pot, and run a short program. If E2 reappears quickly, the NTC sensor or control board is likely defective and should be replaced.
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Repair Difficulty
Hard
4/5
Required Part
NTC Temperature Sensor
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