Bertazzoni
Sensor Calibration / Humidity Detection Issue
Microwave sensor cook or reheat programs consistently overcook or undercook food.
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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
Contaminated humidity sensor port, Failing humidity sensor, Incorrect cookware or covering, Control algorithm drift
How to Fix / Troubleshooting
Safety first: Unplug the microwave before internal cleaning near the sensor.
- Step 1 – Clean interior: Thoroughly clean the cavity, especially around the sensor port, to remove grease and steam residue.
- Step 2 – Use proper cookware: Follow the manual for recommended containers and coverings for sensor programs.
- Step 3 – Test with known loads: Try sensor programs with typical foods (e.g., a cup of water, a plate of leftovers) to see if performance improves.
- Step 4 – Replace humidity sensor: If results remain poor, replace the humidity sensor and, if necessary, the control board.
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Repair Difficulty
Medium
3/5
Required Part
Humidity Sensor
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