SE
Ambiano
Humidity / Steam Sensor Fault
Microwave displays SE or "SENSOR" error and stops cooking, often during sensor cook or reheat modes.
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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
Failed humidity sensor, Blocked sensor port with grease or food residue, Loose sensor wiring, Faulty sensor circuit on control board
How to Fix / Troubleshooting
Safety first: Unplug the microwave.
- Clean the cavity: Wipe down the interior, especially the area near the steam sensor (often on the top or side wall behind a small grille). Use a mild detergent and warm water; dry thoroughly.
- Inspect sensor cover: Remove the outer cover and locate the humidity sensor module (small PCB or component near the top of the cavity). Ensure its opening is not blocked by insulation or debris.
- Check wiring: Verify the sensor harness is firmly connected to both the sensor and the control board.
- Test operation: After cleaning and reassembly, test a non-sensor mode (e.g., manual time cook). If only sensor modes fail with SE, the humidity sensor is likely defective.
- Replace humidity sensor: Install a compatible Ambiano humidity/steam sensor module if cleaning does not resolve the issue.
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Repair Difficulty
Medium
3/5
Required Part
Humidity / Steam Sensor
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