Microwave shows E014 and shuts down shortly after starting, often with the cooling fan still running.

Safety: Turn off and unplug the appliance. Allow it to cool for at least 30 minutes.

User actions:

• Check that the microwave has the correct installation clearances and that cabinet vents are not blocked.
• Clean any grease filters and ensure airflow paths are clear.

Component checks (qualified persons):

• Locate the cavity thermal cut-out and temperature sensor (often mounted on the top or side of the cavity).
• Test the thermal cut-out for continuity at room temperature; replace if open.
• Measure the resistance of the temperature sensor and compare with Neff specifications.

After replacing any faulty sensor or cut-out, clear the error by disconnecting power for several minutes. If E014 recurs, the control board may be misreading temperature and should be checked by a technician.