Question about Panasonic Microwave Ovens
It sounds like you either have a faulty switch or a faulty bulb as this is on an unprotected circuit if has blown it will create a short.if the problem is happening when the machine is being stared it will be either a magnetron fault,capacitor shorted or a diode shorted .to check these you will need a multimeter that has a 10 k scale with a 9 volt battery inside,hope this helps regards les
Posted on Aug 01, 2008
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Sep 28, 2015 | LG Over-the-Range Microwave
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.
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.
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 blown.
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