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Has stopped working. light gone off at same time. plug fuse has not broke. any ideas ?
Tried socket & plug fuse. Both Good. I opened door at the same moment as pressing start button. The lamp flashed inside microwave cooker and power went off on the unit.
Re: has stopped working. light gone off at same time....
There is a fuse inside the microwave also.It is a ceramic fuse,usually 15A.It has to be replaced with another ceramic fuse of the same rating.Bear in mind,the fuse blew for a reason,so if it is the interior fuse replace it after a search for a fault.
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What make is ,this will give me a better idea as to why it has went off.first thing I would check is to see if the trip has gone or that the machine has not just overheated due to the air inlet getting block
Inspect the power cordUnplug
the power cord and check for voltage at the outlet. Also inspect for
damage, shorts, or burn marks that can be a possible safety hazard.
Bad door switchIf your
microwave does not work at all and you know everything is plugged in
properly and the outlet is functioning, then also check the door hooks
and the door release button. Using a volt-ohm meter on RX1, check your
terminals. When your microwave door is closed you should have a reading
of zero. Once the door is open the reading should change to infinity. If
these readings do not match up, replacement of the door switch is
necessary.
Blown fusesTo determine
if your fuse has blown out, which may attribute to your microwave not
running, you need to pull the fuse out using a pair of fuse pullers. Lay
it down and using a volt-ohm meter on RX1, check both ends of the fuse
in question. If you do not get a reading of zero, then you will need to
replace the fuse.
Bad fan motorLocate the
fan and remove the leads. Again using the volt-ohm meter on RX1, check
the terminals. If an infinity reading is displayed, it means that the
fan has gone bad and requires replacement.
Light bulbIf your
microwave light bulb is not working, perhaps it has blown. The first
step is to replace the bulb and power on the microwave. If this does not
correct the issue, the next step is to check the socket and wiring to
verify if that is the problem.
Light bulb socket & main control boardIf
your microwave light bulb is not working after the installation of a
new bulb, check the light socket as well as the wiring to ensure they
are properly operating. If these sources are functioning properly, the
next step is to check for a faulty control board as a possible root
cause to your microwave light bulb malfunction.
The light is the only thing that comes on when you open door. You either have a shorted door switch (Micro switch) or a shorted bulb. You have either a shorted bulb or bad socket. From my experience, it's the bulb. Just because it may seem to start to come on when you open the door, it's most likely bad. At least it not expensive.
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You have a short in one of the door safety switches
There function is prevent the oven to work whit the door
open
some are normally close and some normally open when one of then don’t work properly causes a
short and blow the main fuse check the all and replace the faulty one but be careful and don’t test the microwave
Whit the cover removed.
Note: if you have a blown
fuse buy several emplacement fuses because my take several trays to fix the
problem and you will need more than one fuse.
Sounds like a short in the microwave circuit. One or more of the following four components has failed -
Transformer Magnetron Diode Capacitor
Repair is not for the amateur, unless you know how to take things apart, and put them back together EXACTLY as the were found.
Parts are available on the Net, and you can get the P/N's off the old components to identify suppliers of the new ones.
Don't try and measure resistance of the diode. It's impedance is far too high to get a good reading. They're cheap anyway. Always replace the capacitor, they're cheap too. No way to test the magnetron, and the transformer is not easy to test either.
If the fuse
isn't the problem, check the door hooks and the door-release button.
When these are broken, the door switch doesn't activate, so the oven
can't work.
does it not light up at all? A microwave has a fuse on it. Probably accessible from the back panel. if not you would need to disassemble it. Most likely cause of this is slamming the door broke one of the safety switches the door has so the microwave knows when the door is open. And it shorted against something when it broke. It might have simply blew the fuse but then again you might have fried it.
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