Monitor Switch Part Number?

The monitor switch is likely causing the fuse to blow because one of the other switches is stuck in the closed position. If this is the case, replace both the monitor switch and the defective switch.

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It sounds like one of the door interlock switches is bad. You will have top access the control panel where you should gain access to the switch assembly. tested or replace the top and bottom switches. there usually is a third switch that is has a different connection configuration. this will be the monitor switch it is highly unlikely it is this switch or the fuse would be blown.

Hi. The fact that the fuse blows when the door is closed is quite logical. There are safetyswitches preventing the oven to start with an open door. As to the fuse blowing, There are 3 possibilities: the High voltage trafo is defective, the voltage doubler diode or the capacitor are defective. You must be VERY CAREFULL when working on these parts: the voltages are LETHAL.

check when the fuse is blown,means inverter unit is faulty

The main fuse is probably blown.

When replacing, try to determine the cause.

if it has a bad door switch, then the monitor/short switch also must be replaced. On an inverter, replace the power relay as well.

If the fuse holder is not holding the fuse securely, then it will heat and blow.

A failing component in the high voltage circuit can also cause the problem.

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There are three to four switches that monitor that microwave. If any of them are bad it won't work. More then likely it's the monitor switch. There's a primary and a secondary switch. Take the cover off and look for the tech sheet it will show you which ones they are. They are around the door latch area...good luck.

You can check the protection diode fitted across the highvoltage capacitor near to the Highvoltage transformer. If it is shorted there is a chance to blow off the fuse. There is no chance for the monitor switch. Any way you can check the monitor switch which is located near to the control panel( Near the door switch)

Possibly the interlock monitor switch is bad or out of adjustment. This switch is designed to create a short circuit across the power line (and then blow the fuse) if you attempt to defeat the door interlock and operate the oven with the door open. A shorted capacitor or diode could also cause the fuse to blow. Because of lethal voltages inside and the possibility of microwave leakage if repairs aren't done correctly, you are best off leaving microwave service to professionals.

1.Problem with monitor door switch or
2. Problem with high voltage condenser.

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sound like the door monitor switched has blown or shifted out of position if the switches dont operate in tandem when door is opened or closed it will blow the 10 amp fuse and kill the display they will need to be checked by engineer if it is monitor switch they are not expensive to replace.