Question about Samsung MW1030WA Microwave Oven
You didn't indicate what the problem is and it may not be a blown fuse causing it.
Things to check: make sure the outlet has power with another appliance; make sure that if the voltage is missing that it doesn't come from a tripped ground fault interrupter.
If these check out OK, pull the plug, remove the back panel to view the insides. Look for a fuse holder, remove the fuse and take it to an appliance repair shop or chain home improvement store for a replacement; buy two.
Replace the blown fuse and try it. If it blows a second fuse, the high voltage rectifier for the magnetron may be shorted. Keep the 2nd replacement fuse, but don't put it in until the problem is found.
This, you can only check with a simple multimeter, analog or digital makes no difference.
You can buy these handy items at Radio Shack, auto parts stores or a home improvement store. If you buy one, choose digital over analog.
They should NOT cost more than $20 and I have several for which I paid under $10, two of them only $3.
The diode can be in several different cases so describing them isn't better than a guess. They will normally be encased in black epoxy but can be square, rectangular, cylindrical.
Measure on the range marked with a arrow-like symbol with a bar across the pointed end.
If the rectifier (diode) is good, it should read about 500-700 on the display or something very high resulting in an overflow reading and the opposite when the lead polarity is reversed.
If you find one of these and it is bad, you will not likely find these in most stores since they are not used in many items, the microwave oven is the most common place they are used. They will normally have some kind of type number printed on the case and you need this for your search. There may be two groups of characters, one of them a 4-digit group (for example: 0532 would mean 2005, 32nd week) that is often only the date code and useless for the search. You can enter the number in any search window and probably find at least a couple of suppliers but many of them will have minimum charges.
Posted on Dec 12, 2009
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Posted on Jan 02, 2017
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