Question about Sharp R-1480 Microwave Oven

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Waveguids burnt and used

Need to know where to find a waveguide for a sharp microwave. It is a cardboard piece not a plactic piece

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The best place to orderSharp parts is Tritronics. Or you can call them at 866-779-5835.

We'rehappy to help you with free advice and we'd appreciate yourthoughtful rating of our answer.

Posted on Dec 15, 2008

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I have a Sharp Carousel Microwave R-1460A. The disk on the ceiling, opposite the warming plate and about the same size, has severe burn marks (probably from food splatters). Any idea what that part is


see this indication and fix it. God bless you
  1. Waveguide coverSparking and arcing in a microwave can be caused by a damaged waveguide cover. Try removing the waveguide cover to see if the problem persists. Once removed, the waveguide cover can be inspected for burns, which will indicate if this is the issue. If the waveguide cover is burnt or will not stay in the proper spot it will need to be replaced.
  2. Cavity/Rack supportIf sparking or arcing in your microwave is near a rack support, any exposed metallic area can be covered with a microwave cavity support. It is also recommended to replace the rack supports in this situation to ensure the issue is resolved.
  3. Cavity paintIf sparking or arcing in the microwave is visible on the side walls, the paint covering the metallic areas could have worn off or chipped. This can possibly cause pitting in the side walls or ceiling. If this is the case, it can be repaired with microwave cavity pain

Nov 08, 2013 | Sharp R-1460 Microwave Oven

1 Answer

Microwaves


What you are meaning is the waveguide within the cabin which could have been burnt due to food particles that got entangled.
Click this link and also check for spares.: Waveguides

Feb 11, 2013 | Microwave Ovens

1 Answer

There is a pad on the interior right side that is made out of cardboard type of material. Seems very flimsy. Does this stay in there? What is its purpose?


That piece is called the waveguide cover. In many ovens it's made of plastic. In others, like yours, it's a mica sheet and does seem rather like cardboard, and is brittle. It's there to cover the hole where the microwaves enter the cooking cavity, so no food particles or grease can get in. The oven can work without the cover, but it's potentially unsafe. Arcing and overheating can result, and the magnetron tube (the microwave source) can be damaged, if food buildup occurs in the waveguide.

Replacement waveguide covers are available for many models, and you can get pieces to make your own if you can't find the exact part. Search the Web for "<your make and model here> waveguide cover". Sears parts and Appliance Parts Pros are good places to start looking, and you may be able to find a suitable replacement if you have an appliance parts store in your area.

Sep 10, 2011 | Microwave Ovens

1 Answer

I have a 2004 Sharp R-1214 1100 Watt Microwave and the card like removable 3 x 4 inch plate broke (almost like cardboard) and it covered the vented opening. I don't have a users manual so I don't know the...


That's the waveguide cover you're talking about. It covers the opening in the side of the cooking cavity where the microwaves enter. The oven will work without it, but if you don't have the cover in place, food particles can get into the waveguide and cause problems. You can buy a replacement here.

Feb 07, 2011 | Sharp R-1210 Microwave Oven

1 Answer

On the inside top right side of the microwave there was a cardboard cover held on by 4 corner points. The cardboard has fallen out now as it has come unsecured from the points holding it in place. Is it...


That's the waveguide cover.

If your waveguide cover is burned or damaged, it will need to be replaced.

It provides critical protection for the magnetron.

You should be able to get Galaxy parts from the Sears site.

To find helpful exploded view diagrams and get part numbers, you can just enter your full model number at the Sears parts site.

A full Galaxy/Sears/Kenmore model number has 3 digits, a dot, then 8 more digits, such as ###.########


We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Sep 06, 2010 | LG MS-0744Y Microwave Oven

1 Answer

Sharp R403 microwave internal electrical short/fire


This is a simple problem & solution.

Quite often this is due to grease or food particles stuck somewhere in the cavity of the oven or stuck on or behind the waveguide cover.


The waveguide cover (also called a spatter shield) 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 and dried thoroughly.

Then you can apply some high-temperature appliance paint, available from places like Wal-Mart, Lowe's or Builder's Square.

Since your waveguide cover is damaged, it will need to be replaced. It provides important protection for the magnetron.

You can order parts from Encompass here or you can call them toll-free at 866-779-5835.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Jun 03, 2009 | Sharp R-403HW Microwave Oven

1 Answer

Interior cardboard/foil piece fell off revealing small chamber inside oven--still safe?


This is the mica or plastic waveguide cover. It protects the waveguide and magnetron form grease and food particles.

Assuming you're going to scrap the unit, carefully clean the area around the outside of opening (watch for sharp edges) with a lightly damp soft cloth.

Then use alcohol or a hair dryer, etc. to be sure the area is dry.

Then you can use a couple of strips of clear packing tape to cover the opening and trim it with a razor blade so only about 1/4" or so extends out from the opening.

Note that I only recommend this procedure on an oven that is going to be scrapped. If the oven will see continued use, a new waveguide cover should be purchased.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Oct 22, 2008 | Microwave Ovens

1 Answer

Inside the microwave the piece of cardboard looking rectangle has fallen off. is this dangerous


Yes. This is the waveguide cover, and it needs to be there to protect the magnetron from damage.

The waveguide cover is usually about the size of a playing card and often held in place by a plastic rivet or held in a slotted opening.

It can be fragile, and the metal edges of the oven behind it can be sharp, so be careful!

If your waveguide cover is burned or damaged, it will need to be replaced.

You can often find helpful exploded view diagrams and order parts by entering your full model number here or here.

Please write back with your brand and model number if you need further help.

We're happy to help and we appreciate your thoughtful rating of our answer.

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Apr 21, 2008 | Microwave Ovens

1 Answer

Waveguide cover for Kenmore microwave


Try replacing the screws with larger ones. Maybe you ordered the wrong piece, if your microwave comes with a mica cover (A fine, square piece of mica) and you received a plastic one, you will need to get the right piece or adapt the one you received.
You can get the mica cover on any microwave service.

Feb 16, 2008 | Microwave Ovens

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