GOLDSTAR MV150W We have four year old microwave which was working very good. But now, we are not able to heat the food. After setting the time to cook, fan is working instead. Please help appreciated. Thanks, KumarRaja

• The glass tray had a hairline crack or stress fracture that was not visible
• It got a little too hot in one area
• The expansion from the heat caused the fracture to expand and therefore crack and break

An accidental bumping of the microwave plate on the countertop while going from the microwave to the dishwasher might set up the above situation. The spoon your seven year old left in the mac and cheese might have arced and nicked a small piece of the glass. Whatever the cause, microwave trays break and they break for a lot of reasons.

All foods cooked in the microwave produce heat. Microwaves themselves are not hot, but the foods cooked in a microwave get hot - some much hotter than others.
Even though most microwave glass trays are tempered, they are not designed to hold up under high temperatures. You will see most microwave trays stamped with the words "For microwave oven use only" This is to let us know that it's probably not a good idea to use the trays in a conventional oven.
Any air pockets, cracks or gaps in the glass can enlarge under heat. Since glass isn't very receptive to being stretched, breakage can occur.


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http://www.ebay.com/gds/Why-did-the-glass-tray-in-my-microwave-break-/10000000003014864/g.html

The problem is caused by a bad magnetron, "common problem" or the high voltage capacitor and diode, all three work together to heat the food. The repair cost for parts and labor will be high enough to consider buying a new microwave oven.

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Basic Microwave Oven TroubleshootingTips

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If it does not heat, with all other functions working, the problem lies with the magnetron circuit. The magnetron is the part that makes the microwaves to heat the food. Typically, the magnetron fails and shorts out. Symptoms when this occurs is a loud hum from the oven and does not heat the food. The replacement magnetron costs are close to the price of a new microwave oven, so it rarely pays to have it fixed.

With these symptoms, I would suspect you have a bad magnetron.

If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

Some manufacturers will send you the magnetron to do it yourself. If nothing else, you can save about $75 by taking it to the shop yourself.

Here are some links you or someone you know can use (in order given) for test help, but read the safety warnings first:

http://www.gallawa.com/microtech/diode.html (if it is NOT shorted, it's probably fine)
http://www.gallawa.com/microtech/mag_test.html (continuity can be good even though it is bad!)
http://www.gallawa.com/microtech/xformer.html

To order Goldstar / L.G. parts, visit Vance Baldwin Electronics.

For more Goldstar / LG / L.G. help, call 1-800-243-0000 (M-F, 7am-8pm CT, Sat 8-5 CT) and choose the appropriate prompt from the menu or visit here. You can get warranty info & find a local authorized servicer.

L.G. / Goldstar owner's manuals can be downloaded here.

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

Dear friend,
ngfam at you service! happy to assist!

If there is no power at all then perhaps the fuse is blown in the microwave.
How old is it?
The magnetron tube could be burned out! and its cheaper to buy a new one usually!

We sell appliances for 65 years and I recommend this nation wide Factory repair service!



Call A&E Factory Service /They service nation wide
And are available 24/7 for making appointments!

If the appliance is 10 years old or more,it may make sense not to invest any money to fix it!

Happy to assist you,
PLEASE GIVE ME A GOOD RATING BEFORE YOU SIGN OFF!

It doesnt matter how old a system was. components can be failed at any point in time. unplug the unit. carefully disassembly and visually check the diode near magnetron and capacitor, it might be broken.If seems good, check the thermostat continuity,if beeping. changage your magnetron. be careful capacitor store charges that deadly. discharge the capacitor first.
when you change mag. change the diode too.

Typically, no heating of food, indicates a bad Magnetron (tube) or associated components. The oven can be repaired. Magnetrons are not hard to replace and can be ordered online through MCM electronics www.mcmelectronics .

However, due to the dangers of high-voltage within the unit, I would recommend taking the unit to a repair center.

Look in the manual to see what the warranty says. See if there is any information regarding the magnetron or parts. You may be able to get it repaired for free parts, less labor.

Please let me know if I can be of further assistance to you.

Good Luck,

- Jim

Most of the time the magnetron is defective if the food is not heating up.
In some cases there is a defective low power transformer or other componenents associated with the magnetron.
I would suggest to check the owners manual under the warranty section. Sometimes the magnetron has 5 years warranty.
Good Luck.

have a GE xl1800 microwave that is not heating the food. The lights work, turntable turns etc. all but no heat. Help this microwave is only 1 years old.