Microwave displays E09 and stops; may occur when using sensor cook or reheat functions.

Safety Warning: Unplug the microwave before removing any covers. Avoid spraying cleaners directly into sensor openings.

User-level cleaning:

• Locate the sensor vent area inside the cavity (often on the top or side wall).
• Wipe the area gently with a soft, damp cloth to remove grease, food splatter, and residue. Do not saturate.
• Allow the cavity to dry completely, then test a sensor cook cycle.

Technician-level steps:

• Remove the outer cover to access the humidity sensor module (often near the top front of the cavity).
• Check the sensor connector and wiring harness for secure fit and damage.
• Replace the humidity sensor if visibly damaged or if resistance/voltage readings are out of specification.
• If a new sensor does not resolve E09, the main control board may be defective.

In the meantime, you can often use manual time and power settings instead of sensor modes if the unit otherwise heats correctly.