KitchenAid · Microwave Hood Combination
It is normal to experience some odor and a small amount of smoke during the first few times you use the convection cooking function. This is due to manufacturing residues burning off during the initial heating cycles.
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Ensure the kitchen area is well-ventilated during the initial convection cooking cycles.
The odor and smoke will naturally dissipate with repeated use of the convection function.
If excessive smoke or strong odors persist after several uses, discontinue use and contact service.