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MICROWAVE TAKES LONGER TO COOK EVEN ON HIGH AND OCCASIONALLY SPARKS FOR NO REASON

Posted by Jan Koellen on

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Ruben Diaz

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Inside your micro... walls are made of metal but protected with paint, if this paint is gone and the metal shows thats what happend you have to repaint the unprotected areas again, and the reason your micro... is not working so good anymore is due to the magnetron

Posted on Feb 02, 2014

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0helpful
1answer

Microwave turns on but wont cook food

It is most likely the magnetron, but! there are two more items that will do the same, a cracked high voltage diode and a shorted high voltage capacitor.
0helpful
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Bottom is rusted and when i try to cook something,

Since the cavity metal of the oven is chipped or charred, it will have to be sanded smooth and clean.

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

If it is not repaired, the rust will worsen until the cavity is damaged beyond repair.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
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Kenmore microwave Model 72 8975590 (750 W) is taking longer to heat food. Takes 3.5 min to bring one cup water to boil, previously took 2,5 to 3 min. Does the element lose power over time?

I can adjust the power level so that circuitry seems to be ok. The longer water boil time could be partially due to the colder winter temperature of the inlet water. We'll just cook the food a bit longer as long as the magnetron is still working.
5helpful
1answer

Microwave runs but does not heat or cook food


If a Goldstar, LG or Zenith MV1610 or MV1608 is running but not seeming to heat a load placed in center of turntable, its probably because the "stirrer" intended to spread microwaves generated by the magnetron around the cook chamber is stuck so that most all the heating is directed toward the back and top rather than the center of the cook chamber. This usually occurs after cooking for longer than a minute with no load in the cook chamber - as when a model w/o a timer (such as a MV1608) is intentionally operated in cook mode to serve as a kitchen timer, or when a model with a timer function (such a MV1610) is accidentally operated for longer than a minute w/o any load. Before assuming the magnetron (usually warranted for 5, 8 or even 10 years) or other high voltage component such as diode or capacitor needs to be replaced, try “cooking” a 16 oz pyrex cup of water at full power on the outer edge of the turntable for 2-3 minutes - which usually reactivates the "stirrer" and restores normal cooking function.
1helpful
1answer

Everything works but the food does not cook.

Please check your door safety interlock switch, the #1 reason microwave ovesn do not heat. Find these tiny switches inside opposite the hinge.

When the contacts burn, the oven no longer can tell if the door is closed.

Thanks for using fixya.com
1helpful
2answers

Kenmore Microwave Oven Sudden Power Reduction

I would be sure to check the microwave's outlet under a load.

One good way is to use a toaster or hair dryer for about a minute to see if they run at full power and run without their heating elements dimming.

If the power at the outlet is steady, I would suggest a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If it still fails to heat properly, I would say you have a failing magnetron, and it would just be a coincidence that the failure began after the new wiring was installed.

If you need to order the magnetron, Sears sells it for $73.13, but you can get it for $41.84 here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
0helpful
1answer

Does the microwave oven auto shut-off when you open the door while cook time is remaining?

Yes. The two hooks sticking out from the inside of your door go in and activate a series of switches. Once you press or pull to open the door, before the door even moves, one of the door switches will disengage and turn off the high voltage.
The fan and light may still be on, but the unit is no longer cooking.
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Problem

check halogen light holder and connections, and any damage body, check inside body of microwave oven , because of microwaves some sparks comes from damaged body..
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