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There is a round silver disk (seemingly made out of card board) that fell off. Can it be replace with another cardboard cut out in the same shape?

There is a round (seemingly card board) disk on the right side of my SANYO EM FL90N microwave. However while cleaning it came off. Can i replace it with another carboard,cut round and coated with silver paper...or is there something special about the one that was in the micro to begin with.

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The disk is just a microwave diffuser but, it is made with a special foil do not put regular foil into a microwave for any reason; just glue the disk back on with ordinary glue

Posted on May 20, 2009

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Posted on Jan 02, 2017

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1 Answer

There is a piece of cardboard inside covering a metal panel, do I need to remove it?


Interior of microwave ovens are metal, never cardboard. Must be something used for shipping purposes, pitch it.

Jun 17, 2015 | Microwave Ovens

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Magic Chef MCD1311ST: Our microwave oven no longer beeps. Is there a way to fix the problem?


I assume you are certain it isn't your hearing going bad - sometimes the high-pitched tones of beepers become inaudible without properly functioning hearing aids, or the ability to hear certain tones disappears altogether. This is easily checked by asking someone with known good hearing if the beeper is working. Hearing problems can occur at any age, so don't dismiss this too quickly.

If everything else works normally, it is either the beeper (usually a piezoelectric disc on the controller board or attached to the board with wires, but sometimes a small speaker) or a fault in the controller board's beeper circuit. The first thing I'd do is check the disk and any wires for cracked or loose connections. (CAUTION: unplug the oven before removing the cover.) It's usually located on or near the controller board behind the key panel. Generally, piezoelectric discs are about 1/2" to 2" in diameter, have a brass rim with a silver plated ceramic center, and may be enclosed in a drum-shaped black plastic housing with a hole in the center to let the sound out.

If the disk is connected to the controller with wires and a removable connector, unplug the connector, clean the pins and test it. Piezoelectric audio devices use very little current, but a dirty or oxidized connection will still keep them from working. It is possible that the disk itself has mechanical (spring) contacts, and the silver electrode plating at the contact is tarnished. In that case, gently clean the silver with a soft white pencil eraser. Do not over-polish; the silver film is very thin.

Is is possible, but difficult, to repair a cracked solder connection on the disk. You must use an acid-free solder flux and silver-bearing solder (3% silver recommended), and you must work quickly using an iron at the correct temperature for the solder or you will completely detach the silver film from the disk.

If necessary, you can find replacement disks at electronic component vendors such as Mouser Electronics. The primary specification is the frequency (musical pitch), given in Hz or kHz (Hertz or kiloHertz). If you don't have that number, getting a disk of the same diameter will probably be close enough. You'll want one with wires or PC leads already attached. piezoelectric Audio Devices Mouser

Oct 22, 2014 | Microwave Ovens

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My emerson microwave #mw8999rd shoots out fire from a silver piece of cardboard thats on the righthand inside of my microwave oven. whats with that?


There is electrical problem in your microwave heating circuit. This is a fire hazard and you should stop using this microwave and unplug from the outlet. This is not something you can fix and the fuse does not protect your system anymore. The best choice is to purchase a new one and throw this away.

Dec 06, 2011 | Emerson Microwave Ovens

1 Answer

How do I lay lino round the base of the toilet?


Mark out and cut the base of the bowl size, using a old Cornflakes packet is useful, cut the hole and behind the bowl part of the cardboard test piece cut to the edge in a straight line. The cardboard will now open (a bit like a keyring) and alow the cardboard cut out hole to be placed around the base of the toilet bowl. Trim it to fit perfectly.
When you have the exact size in you cardboard cornflakes packet, transfer the cut out on to your lino, cutting in a straight line at the rear of the lino where is will not be seen, to allow fitting over the bowl. Trim your lino edges and there you have it, lots of scrap cardboard but a professionally fitted lino floor covering.
I hope that helps.

Feb 03, 2011 | Microwave Ovens

1 Answer

Hello, we have a R 1491 above the stove microwave and recently a part fell down from the ceiling of the unit. The part is a silvery card board type of part attached with a narrow white plastic tube and a...


That part must be replaced. It is the waveguide cover and aerial for the magnetron.
Without them the radiation will not co efficiently to your food and the magnetron woll become contaminated with food particles and steam, leading to failure.
Contact a Sharp agent for spares.

Jan 07, 2011 | Sharp Microwave Ovens

1 Answer

My microwave stop working the clock and timer works but food is still cold. (The round cardboard piece on it's ceiling fell off about 3 months ago.)


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Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

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Kid ran empty for ten minutes, got very hot, now doesn't work. Fuses seem OK.


most likely the thermal fuse ( usually calld thermal cut off orTCO) which is mounted on top of the cavity and is to protect the cavity from over heating has blown out.power to control board goes through this tco.to access this tco u have to remove the outer cover of the unit by removing all the screws th back and sides.once u have removed the cover then u can the tco at the top.it is round in shape.u can do a continuity test on it.

Aug 19, 2009 | Microwave Ovens

1 Answer

IS MY MICROWAVE NOW UNSAFE TO USE - CAN I DO OWN HOME REPAIR?


It sounds like what you are describing is called a "waveguide cover". You can purchase a replacement from a local parts supplier, or on-line at www.repairclinic.com. It is very easy to replace.

Jun 30, 2009 | Microwave Ovens

1 Answer

GE Spacesaver 1800 XL - rattling sound


Hi jnflanders,
You've probably solved this by now, but I'll answer just in case. That part is called the stirrer motor. You can replace it yourself, as long as you have an offset phillip's head screwdriver handy.
Before you order the replacement part, figure out if your stirrer is driven by a d-shaped or a square shaft. You can tell by taking off the round plate on the inside top wall of the microwave. GE makes stirrer motors for both d-shaped and square shafts, so you'll have to get the right one. Here's the d-shaped motor that fixed this problem with my microwave: http://www.appliancepartspros.com/part_details.aspx?part_id=2024961.
Good luck!

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