About the exhaust feature.To Install the Charcoal FilterTo install a new charcoal filter, removeplastic and other outer wrapping from thenew filter.Insert the top of the filter up and into thegrooves on the inside of the top opening.Push the bottom of the filter in until it rests inplace behind the tabs.Before you call for service....Things That Are Normal WithYour Microwave Ovenn Moisture on the oven door and wallswhile cooking. Wipe the moisture off witha paper towel or soft cloth.n Moisture between the oven door panelswhen cooking certain foods. Moistureshould dissipate shortly after cooking isfinished.n Steam or vapor escaping from aroundthe door.n Light reflection around door orouter case.n Dimming oven light and change inthe blower sound at power levels otherthan high.n Dull thumping sound while oven isoperating.n TV-radio interference might be noticedwhile using the microwave. Similarto the interference caused by othersmall appliances, it does not indicate aproblem with the microwave. Plug themicrowave into a different electricalcircuit, move the radio or TV as far awayfrom the microwave as possibleor check the position and signal ofthe TV/radio antenna.NOTE: If your display is off check tosee if your Power Saver (Energy Saver)feature button is engaged.30