Microwave Warm Cavity or Case

Cooking foods in a microwave oven for an extended period of time can cause a heat transfer not only to the internal oven walls and floor, but to the external cabinet as well.

 

 

Heat is generated outward from the food being cooked. Additionally, the oven's interior lamp and the magnetron tube will contribute to external heat transfer. This condition is considered normal. It should be noted that the internal and external temperatures after extended cooking will vary, naturally, depending on the preparation and the length of the cooking time.

 

Over-The-Range Models: Heat from the surface lights can make the cavity floor warm, especially if they are on for a prolonged period. This is normal.