A simple Microwave oven repair

A simple, money saving repair to a common microwave oven failure!

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[jumma88]

i have problem with my microwave oven ,i was not starting at all .so i followed the instruction and check the fuse ,the fuse was not good so i replaced it and it seems to be fine.but when i tried to use it the fuse was gone again so my question is this what causes the fuse blown again and again.please respond to my question thanks.

[dacrocker]

@jumma88 Without being able to see it myself, there is no way to know. I'd first check to ensure the fuses you are using are the correct type for appliance use......specifically microwaves. Automotive fuses or standard buss fuses will not hold. If the rating and type are correct, there are several possibilities. I'd first consider the magnetron. It is the biggest electrical load and is what produces the microwave radiation. Beyond that, check for obvious shorts or signs of arcing.

[Cguesty]

my microwave has stopped heating food, any idea why?? thank you

[dacrocker]

@Cguesty

My guess would be a bad Magnetron.

[MrFlamingo14]

please my quetion is where can i find the tools to open my microwave

[dacrocker]

@MrFlamingo14 Well.....I got my set of tamper-proof screw bits from an electrical supply store...but it only came in a set. You may have luck at Sears or other tool seller. I'd also check online....Google it and see what comes up. If you only need the one type of screw tip, this may be your best bet. Hope this helps....Good Luck!

[moonerstir]

my microwave did not come on at all. not the fan ,light ,turntable, nothing. opened the top, checked cord,fuses,door closing switches-all good. then at the point of giving up noticed a small cup like gadget located near the bottom attached to the inner wall of the chassis. this had a small red button on top. looked like a reset button so pressed it down, hey presto oven working.

[rugto]

Try to disable the micros-witch that closes the circuit when you close the oven's door. The oven can now be operated even with the door open. If you have a larger oven that can accommodate a human head like your head, try operating it with your head inside it. I tried it once and it sounds great. I can see all the colors I have never seen b4 in my life, hear all the angels singing, and feel some kind of frying which I don't from where is coming. Nice xperence. U kidz out there try it.

[a5829916]

You're money bro!

[kajala11]

It took two YouTube Vids to help me replace the blown ceramic fuse in my microwave. The first video showed microwave basics and the simplest method for removing the torque screws by using a small flat screwdriver (about 1/8") , so no special tools needed. This vid, outside of the musical annoyance, displayed the same blown fuse problem and gave me the direction for my repair. I found the fuses at Radio Shack and a box of 4 cost less than 3.50.

[amosnews]

Thank you. It worked and my micro is back to life. I would buy you a case of beer if I could.

[flabnblab]

@Arabhacks "All of that to show that a fuse was bad?"

Yes some people are totally non technical, have no idea about electronics, and are not Engineers.

A good teacher provides detailed information.People who can't teach, give the info in in one minute, and have you try to funble through and figure it out ...like you just did.

What you gave us there is from is from one electronics nerd to another.

[therealjammit]

The three things that normally go bad on a microwave are one of the three interlock switches, the capacitor, and the HV diode. If the magnets on the magnatron aren't broken, chances are the magnatron is OK. The magnatron is very well built.

[faultbreak]

@Rickenmacker3001 Hey you dipshit limey, maybe he only supports his local ma and pop appliance store, where they have to charge more because they can't compete with big corporate home depot type stores?!?! So, go ahead, you sellout, and buy your five fuses. He helped people out here.

[Cytacon]

All you have to do is buy a normal torx or hex bit set for a few bucks and drill out a hole in the center with a dremel. Simple. You don't need to spend $80 fucking dollars.

[bruce1164]

@Rickenmacker3001 This is a special fuse that has a ceramic body.