Question about In Microwave Ovens
No. If there is any question as to the integrity of the door, it should not be used.
Posted on Oct 25, 2017
SOURCE: Hole in plastic on inside of door
check the conductivity of the plastic with an ohmmeter by placing the probes an inch apart on the plastic surface. If the resistance is large or infinity, the plastic probably performs no role in stopping the microwave radiation. If so, any epoxy probably can be used to close the hole safely. Make sure you don't use too much and if possible place tape over the repair and orient the microwave so the epoxy presses against the tape while drying to prevent it from oozing into any door hinge/close mechanism. Otherwise, a piece of microwave door glass from a broken unit can ge glued over the hole and should stop the radiation. You can check for leakage with test units but be very carefuly anyway.
Posted on Nov 30, 2007
SOURCE: Dacor Microwave
Quite often this is due to grease or food particles stuck to the inside of the oven or stuck on or behind the waveguide cover.
The waveguide cover is usually about the size of a playing card and often held in place by a plastic rivet.
It can be fragile, and the metal edges of the oven behind it can be sharp, so be careful!
The cover and the metal behind it should be cleaned with a mild, non-ammonia cleaner.
If the cavity metal of the oven is chipped or charred, it will have to be sanded smooth and clean.
Then you can apply some high-temperature appliance paint, available from places like Wal-Mart, Lowe's or Builder's Square.
If your waveguide cover is burned, it will need to be replaced.
The part would be much cheaper if you get the Sharp version (these ovens are made by Sharp) instead of the Dacor branded part.
The model DMT2420 is essentially the same as model R440D / R540D.
The Sharp part number is PCOVPB085MRP0 (zero on the end) and you can order Sharp parts from Tritronics at http://www.wehaveparts.com
We're happy to help and we appreciate your thoughtful rating of our answer.
Posted on Mar 18, 2008
SOURCE: sparks in oven
the burning is normally caused by a small particle of food getting stuck on the waveguide cover, this then carbonises and starts to arc. replacing cover should return oven to normal
Posted on Feb 23, 2009
SOURCE: Microwave waveguide spatter shield burned through
THE PART IS CALLED A WAVEGUIDE COVER AVAILBALE FROM REPAIRCLINIC.COM
Posted on Mar 02, 2009
SOURCE: My microwave has a hole burned through the door.
This can start when food splatters on the inner door, then from that point the microwaves that do the cooking are attacking that splatter eventually burning a hole in the door. Do not use the microwave oven in this condition. You will need to have the door parts that are damaged replaced
Posted on May 08, 2010
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