E2
Aroma
Bottom Temperature Sensor (NTC) Short Circuit
Multicooker displays E2 and will not start or aborts cooking shortly after heating begins.
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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
Shorted NTC thermistor, Moisture or condensation inside sensor connector, Melted or chafed sensor wiring touching chassis, Failed main control board input circuit
How to Fix / Troubleshooting
Safety first: Unplug the cooker and let it cool fully. Do not attempt to operate with the cover removed.
- Dry the unit: If the cooker was recently overfilled or boiled over, moisture may have entered the base. Remove the inner pot, wipe any visible moisture, and leave the cooker unplugged in a dry, warm area for 24 hours. Then test again.
- Inspect sensor wiring: Remove the bottom cover. Trace the two-wire harness from the bottom NTC sensor to the control board. Look for melted insulation, crushed wires, or spots where the wires may be touching the metal chassis and causing a short.
- Separate and insulate: If wires are stuck together or bare, separate them and wrap with high-temperature electrical tape or replace the harness.
- Check connector for moisture: Disconnect the sensor plug from the PCB, inspect for moisture or corrosion, dry thoroughly, and reconnect.
- Re-test: Reassemble and run a short cycle. If E2 remains, the NTC sensor or the control board input is likely defective and should be replaced.
- Professional help: If you are not experienced with electrical measurements or suspect a board failure, contact a service technician rather than attempting board-level repair.
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Repair Difficulty
Medium
3/5
Required Part
Bottom NTC Temperature Sensor
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