Question about Microwave Ovens

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Russell hobs microwave oven

Whilst cooking potatoes on the cooker setting the microwave just went off. I have checked the fuse with a multimeter and there is power to the socket. Could it be an internal fuse?

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  • Fleabag Nov 09, 2007

    Hi, We have already check the 20 amp fuse, the fuse test good. Is there another fuse under the case in the food cavity?. If not where to start next.Thanks



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I am a recently retired appliance engineer of 20 years, microwaves are not normally things worked on yourself, i would be reluctant to help normally but yes there is an internal fuse ( a special quick blow type )just inside where the wire enters the cabinet on a small circuit board, if a replacement is needed it must be exact match bought from an electronic shop, microwaves are dangerous they store powerful electric and can still shock after removing the plug, if the replacement fuse blows, there is a fault elsewhere, and i do not recommend further self repair, work with safety

Posted on Sep 09, 2007


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That was a very long duration to have set for potatoes. It would have made the magnetron burnt by exeeding the limit and findinf there was no conductive medium by moisture , it has ended up burning the magnetron.
First of all clean up the inside and clean up the point of the magnetron beam.Now confirm on the inside to be totally dry.
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