Question about Samsung MW6575G/MW6574W Microwave Oven

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MY SAMSUNG MW6574W OVEN FUSE BLOWS AFTER 4-5 MINS OF REHEATING-NO SMELL OF BURNING -EVERYTHING ELSE WORKS FINE- NO LOOSE WIRING-ALL BULBS WORK FINE TOO- THE FOOD HEATS UP FINE EXCEPT THAT THE FUSE BLO

WE HAVE A SAMSUNG MW6574W MICROWAVE OVEN THE FUSE KEEPS BURNING EVERYTIME WE REPLACE IT. THERE IS NOTHING ELSE WRONG WITH THE OVEN IT HEATS FINE FOR ABOUT 3-4 MINS AND FUSE BLOWS....PLS HELP US...THERE IS NO BURNING SMELL, NO LOOSE WIRES WHAT COULD BE THE PROBLEM....

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  • Contributor
  • 11 Answers

The insulation of the wiring has detiorated and with temperatue rising it further deteriorates. thus increasing the current consumption and blowing the fuse

Posted on Oct 06, 2009

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Posted on Jan 02, 2017

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MicrowaveSvc
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SOURCE: Clock Trips

Are you saying that the oven seems to shut off while cooking? Does it also happen if you cook at full power? This may be a bad connection on the controller (which we repair) or a failing magnetron. Please give usd a little more detail so we can follow up.

Posted on Sep 28, 2007

rickzilla
  • 706 Answers

SOURCE: GE Spacemaker microwave won't heat food

hello kmwnky,
You say that Everything went out at first ( which I assume means that all functions went dead) and then functions started to operate again later... if that is correct and you smelled something burning.. you may have a thermal fuse that failed, filament transformer that failed, magnetron tube that failed or a highvoltage capacitor that failed.. None of these components are something the untrained person should attempt to trouble shoot or replace since there are dangerous energies stored inside the electronics compartment even after power is removed.. Your Micro is > 8 years old and it's probably not worth the cost of repairing at this point. You'd be better served replacing it.. The cost to repair would exceed the cost to replace.. ( I feel like the grim reaper here..sorry..)
Regards,
Rick

Posted on Nov 29, 2008

  • 26 Answers

SOURCE: food not heating in microwave

Magnetron tube probably failed. Depends on how old the microwave is. If its still under warranty, call Frigidaire. If not, take it to a repair shop, get an estimate, and compare it to a new one. It'll probably be cheaper to buy a newer one that will have more power, but check anyway.

Posted on Dec 18, 2008

  • 119 Answers

SOURCE: Does not heat up food.

90% of the time it is a magnetron fault

Posted on Feb 17, 2010

tgmusicgirl
  • 92 Answers

SOURCE: my delonghi 800w microwave oven works but does not heat up food

If your handy with getting the cover off and looking inside... check the obvious.
I suspect :
fuse
thermister
relay
If both microwave and Heating elements dont work, then I will assume the magnetron is ok, ans we are dealing with a high voltage issue... and you will need at best... a volt meter and or neon troublelight...
moust appliances have a simple schematic inside... I would start with the heating element first... trace wiring back to circuit board... usually one side of the heating element is connected to the white wire (neutral) and live (Hot) side is controlled thru the circuit board... so finding the neutral should be easy... then trace with neon light or voltmeter...

I know easy for me to say... but with everything else working... it doesnt seem to be the microprocessor that controlls the unit...

Posted on May 06, 2010

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1 Answer

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The Titanic looked fine! :) You have blown a fuse. Check inside the oven chamber and look for missing powder paint or signs of arcing, if so there is a paint to repair microwaves for this issue or else just dispose of the microwave. If the inside is good remove all the screws and remove the cover. Replace the fuse. If the magnetron was making louder noises prior then replace the magnetron. Since the fuse went the giant capacitor is likely bad. While the cabinet is open make sure to look for burned wires, check the continuity of thermal cutoffs, and check the main circuit-board for burned traces or components. The relays in most electronics are known for arcing (spot welding) and staying in the wrong position. Tap them hard with the back end of a screwdriver. During all of this use safe electrical practices by having the power cord unplugged. The capacitor could still have a high charge on it so be careful.

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Shuts off


Greetings,

Thanks for your inquiry regarding the issues you are experiencing with your microwave. What it sounds like is a possible short internally otherwise it might also be over heating.

How long have you owned your microwave for?

I'll await your reply.

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