Troubleshooting
Things That Are Normal With Your Microwave Oven
• Steam or vapor escaping from around the door.
• Light reflection around door or outer case.
• Dimming oven light and change in the blower sound at power levels other
than high.
• Dull thumping sound while oven is operating.
• TV/radio interference might be noticed while using the microwave. Similar to the interference caused by other small
appliances, it does not indicate a problem with the microwave. Plug the microwave into a different electrical circuit,
move the radio or TV as far away from the microwave as possible, or check the position and signal of the TV/radio
antenna.
Microwave Terms
Term
Arcing
Covering
Shielding
Standing Time
Venting
22
Definition
Arcing is the microwave term for sparks in the oven. Arcing is caused by:
• metal or foil touching the side of the oven.
• foil that is not molded to food (upturned edges act like antennas).
• metal such as twist-ties, poultry pins, gold-rimmed dishes.
• recycled paper towels containing small metal pieces.
Covers hold in moisture, allow for more even heating and reduce cooking time. Venting plastic wrap or
covering with wax paper allows excess steam to escape.
In a regular oven, you shield chicken breasts or baked foods to prevent over-browning. When
microwaving, you use small strips of foil to shield thin parts, such as the tips of wings and legs on poultry,
which would cook before larger parts.
When you cook with regular ovens, foods such as roasts or cakes are allowed to stand to finish cooking
or to set. Standing time is especially important in microwave cooking. Note that a microwaved cake is not
placed on a cooling rack.
After covering a dish with plastic wrap, you vent the plastic wrap by turning back one corner so excess
steam can escape.
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