Tip & How-To about Microwave Ovens

Microwave Doesn't Heat Food

If you microwave turns on, and everything functions correctly, but, the food isn't getting warm, the your magnetron is faulty. The magnetron acts like a heating element.

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My samsung microwave oven is not heating up food. It works normally, lights on, food turning on plate, but not heating the food.


if your microwave does everything you have described , and you can hear the cooling fan running as well after you press the start button , you probably have a faulty wave guide. The wave guide is also called a Magnetron Tube. It is the main part of the microwave which produces the microwave energy . If this part is not functioning it is best to replace the entire unit, rather than have it repaired .

Oct 03, 2010 | Samsung Microwave Ovens

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food will not heat everything else is working


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.

Feb 16, 2010 | Goldstar Microwave Ovens

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Microwave will not warm up food


Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.

The cost of the magnetron is about 95% of the cost of a microwave oven. Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing.

There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.


Benjamin

May 16, 2009 | Whirlpool GH7155XHS Microwave Oven

1 Answer

it turns on ...lights up but doesnot heat or warm the food


Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.

The cost of the magnetron is about 95% of the cost of a microwave oven. Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing.

There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.


Benjamin

Apr 17, 2009 | DeLonghi MW 605 Convection/Microwave Oven

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