Possibly before one should start using the RV microwave, consider your time difference from home appliance’s versus RV appliance’s. While some RV appliance’s actually run a little on the cooler side than home appliance’s i.e. microwave’s some do not. Mine does not! All else fails read the instructions. Outside of a few mishaps with eggs and baking cookies the micro mini cooking seems to work pretty well! All a learning curve.