Microwave shows E11 and sensor cooking functions (e.g., reheat, auto cook) fail to start or stop prematurely.

Safety first: Unplug the microwave before accessing internal components.

• Step 1 – Clean cavity and sensor area: Wipe down the interior, especially near the sensor port (often a small grille or opening on the cavity wall or ceiling). Remove grease and food splatter that may block steam from reaching the sensor.
• Step 2 – Test non-sensor modes: Verify that manual time/power cooking works normally. If only sensor modes fail with E11, the issue is likely isolated to the humidity sensor system.
• Step 3 – Inspect sensor wiring: With the cover removed and power disconnected, locate the humidity sensor module and check its connector and wiring harness for looseness or damage.
• Step 4 – Replace humidity sensor: If wiring is intact and cleaning does not help, replace the humidity sensor with the correct Bertazzoni part.
• Step 5 – Control board: If a new sensor does not resolve E11, the sensor input circuit on the control board may be defective and require board replacement.