Question about LG Microwave Ovens
When the door is closed and i push the start button about 2 sec the fuse blows
Possibly the diode is shorting. replace the diode before replacing the fuse
Posted on Jun 07, 2014
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Posted on Jan 02, 2017
SOURCE: Microwave blows fuse
The most common suspects are the high voltage transformer and the magnetron. It's also possible you have a flaky door switch or loose door switch mount. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can find helpful exploded view diagrams and order parts by entering your model number here: http://tinyurl.com/gv383
Posted on Jun 08, 2007
SOURCE: Microwave keeps blowing fuse
If it blows the fuse as soon as you hit the START button, it's almost certainly a shorted high-voltage capacitor.
If it blows a few seconds after you hit the START button, it's probably the high-voltage transformer. You'll possibly also smell a faint electrical burning smell from the rear vent after you shut if off.
If it blows the fuse as soon as it's plugged in, you probably have a shorted door switch, a shorted varistor, or an internally exposed wire shorting to the chassis, etc.
Posted on Nov 19, 2007
If it went dead almost immediately after pressing the Start pad, that\'s usually a shorted high-voltage capacitor.
If it went dead a few seconds after pressing the Start pad, that\'s usually a failing high-voltage transformer.
Here are some links you or a friend can use for test help, but read their safety warnings first:
You can probably find an exploded view by entering your FULL model number here: http://www3.sears.com (the 3 is correct)
You can order Sharp parts from Sears or from Tritronics at http://www.wehaveparts.com
We\'re happy to help and we appreciate your thoughtful rating of our answer.
Posted on Jan 13, 2008
SOURCE: fuse keeps blowing.
couple questions -
what else is on the circuit,
and what current does the oven need
there are whirlpool over-range models with
1200watts of microwave,
1500watts of convection power, a
60watt bulb and a
over 15amps -20amp circuit needed
if you inadvertantly replaced a higher current fuse with a 15amp fuse, it will blow every time.
the install guide http://www.whirlpool.com/assets/pdfs/product/ZINSTALL/8206589.pdf reccommends 20amp
not a solution, something to check,
Posted on Oct 14, 2008
The light is the only thing that comes on when you open door. You either have a shorted door switch (Micro switch) or a shorted bulb. You have either a shorted bulb or bad socket. From my experience, it's the bulb. Just because it may seem to start to come on when you open the door, it's most likely bad. At least it not expensive.
Please rate solution
Posted on Aug 28, 2009
Testimonial: "Thanks, yes the light comes on for a second then fuse blows. I'll replace it, thanks!"
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