Question about Sharp R-320H Microwave Oven

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Stopworking microwave stop working

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First, if you know you got power to your outlet, then the next step would to be to remove the screws and the outside cover of the microwave, there will be a glass bus fuse inside. these have a tendecy to blow out after several uses. I have a feeling your fuse is blown.

If the fuse is not blown, then the motor may be burnt out BUT CHECK THE FUSE FIRST.

Posted on Feb 09, 2009

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Where can i find the fuse in this magic chef microwave. I was cooking rice and power just stopped. Not the outlet.


I've used several microwave ovens and NONE of them had a serviceable fuse but maybe this video might help you

https://www.youtube.com/watch?v=IN0BqiVX5ds

Apart of this fact, honestly I don't know have any mocrowave elctronics knowledge to hepl you diagnosing the failure.
If your oven stopped working and you don't have electronic knolwedge to repair it, bad new is that you should take it to a reapair service.
In any case, you may read about issue on line, open thhese links:

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SEE THE steps and fix it. and diagrams attached.use the DVOM.God bless you

Line Fuse


Every microwave oven has a line fuse. This fuse is designed to blow if too much current is drawn through the microwave circuitry. The fuse can be replaced, but the underlying issue should still be investigated and resolved. Otherwise the new fuse will blow also.
Main Control Board


If the microwave is not working the main control board may be defective. This is not common. When a microwave stops working the problem is usually the line fuse or within the high voltage circuit; either the high voltage capacitor, diode, transformer or magnetron.


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If the microwave is not working the thermal fuse may have blown. It can be tested for continuity. Watch our fuse testing video for more information.
Thermoprotector


If the microwave is not working the thermoprotector may have tripped. This is a safety device to prevent the microwave from overheating. It can be tested for continuity to see if it's blown2_6_2013_8_43_03_pm.gif2_6_2013_8_43_37_pm.jpg

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IT IS POSIBLE TO HAVE A BURNED FUSE ON THEI Main boARD OF THE OVEN

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Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

ggk

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