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The main 10A 250V Fuse keeps on blowing up everytime I use my Microwave function. This does not happen when I use the Convection Oven.

I have a National Microwave/Convection Oven Model NN-C988W. The Main SICHERUNG Fuse keeps on blowing up within a sec from turning on the Microwave function. This does not happen when I use the Convection Oven function. I looked around on the control panel but could not notice any blown components.

Thanks in advance for your help

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  • BilalHabash Oct 22, 2008

    Ground checked to be ok. But what I have noticed that the Antenna on the Magnetron is damed (melted all around). The test readings of the Magnetron was ok. but the fuse still gets burned as soon as I turn on the microwave. Is the damaged Magnetron Antenna doing this?

  • abdemello Dec 09, 2008

    fuse blows off when going to microwave mode ,

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Possibly magnatron to earth fault.Needs testing profesionaly.(microwaves can kill even when unplugged.)Regards grandadfixer

Posted on Oct 15, 2008

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