When reheating food in your microwave, factors like freezing degree, food size, and weight can impact cooking time. Oversized cookware or heavy items may hinder rotation, leading to uneven heating. Ensure the glass plate rotates freely and is level. Clean any debris from the plate and rotation ring, then reassemble them dry.
You may test the microwave's preheating function by reheating water in a cup. Proper reheating indicates normal operation; if not, we suggest scheduling a repair with one of our highly trained and qualified Bosch engineers.