Microwave stops during cooking and displays E05; may restart after cooling down.

Safety first: Unplug the microwave before any inspection. Allow it to cool completely.

Ventilation and usage checks:

• Ensure vents are not blocked by walls, cabinets, or other appliances.
• Clean grease and dust from vents with a soft brush and vacuum.
• Avoid running the microwave empty; always place a load (food or water) when testing.

Sensor and thermostat inspection (experienced users):

• Remove the outer cover after unplugging.
• Locate the cavity temperature sensor (often a small probe or NTC clipped to the cavity wall or top) and any thermal cut-outs.
• Check for loose connectors or damaged wiring between the sensor and the control PCB.
• If you have a multimeter and the service manual, measure the sensor resistance at room temperature and compare to spec; replace if out of range or open/shorted.

After checks: Reassemble, restore power, and test with a cup of water on medium power. If E05 recurs quickly, discontinue use and arrange service, as repeated overheating can damage internal components.