Microwave displays H1 or "Hot" and will not start a new cycle immediately after heavy use.

Safety: The unit is indicating an overheat condition; do not attempt to bypass this protection.

Cooling and ventilation:

• Open the door and allow the microwave to cool for 15–30 minutes.
• Ensure that all external vents are clear and that the unit has adequate space around it.
• Avoid running multiple long, high-power cycles back-to-back.

If H1 appears frequently:

• Have a technician inspect the cavity thermostat and internal cooling fan for proper operation.