Microwave will not heat any food produce but everything else works fine

There was a component failure in the magnetron circuit. The magnetron is the device which produces the microwaves that heat the food. There are extremely high (and dangerous) voltages associated with this part of your oven. As a result, components often fail and make noise because these components can burst rather violently. You should take it to a competent service tech. The components associated with the magnetron can often be replaced when they fail and it is not always expensive to have repaired.

The microwaves are produced by a MAGNETRON. Everything else can work, but if that does not, then there is no heat added to the food. Unfortunately it is the most expensive part of the microwave and has nothing you can really work on.

Hope this helps.

It sounds like the Magnetron that produces the microwave energy that heats the food has failed and shorted out which is triggering the Circuit Breaker due to the overload. You could try taking it to a repair shop, but with the cost of labour and parts these days, it is probably more economical to buy a new oven especially if it more than 5 Yrs old..

the smoke probably came from the heated food. try using it next time with different kind of foods and also try it to the same kind of food that produces smoke but observe carefully what will happen.

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 .

Micro wave as the name suggests produces heat when the micro waves aimed at an object causes the water molecules inside the object to vibrate hence producing heat.The gadget responsible is the magnetron. If your magnetron is not receiving ht voltage or receiving but faulty, then your micro wave wont work please take precaution when opening micro wave due to high voltage caps that remain charged sometimes even when it is off.check the high voltage fuse/ diode and capacitor if they are fine and the step up trans former o.k then the only option is to replace the magnetron

The part that generates microwaves that heat the food is the magnetron. Typically when the magnetron fails, it shorts out. When that happens the oven will produce a loud buzzing or humming sound. It typically not worth the cost to replace the magnetron, because it is almost as much as buying a new oven.

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

If the microwave oven appears to be working but it is not heating the food, it is very possible that the magnetron, or its power supply has failed.

Jerry G.

PROBLEM MAY BE A RELAY ON THE CONTROL BOARD OR MAY BE A LOOSE WIRE FROM THE HV TRANSFORMER CKT.