Question about Microwave Ovens
There might be many reasons. Do you hear any humming noise when you Turn ON the oven. If yes, it might be a defective Magnetron.
The know more about Magnetron, read :-
Now, the procedure to check Magnetron is :-
Note - You need to have some appliance repair experience or you should be really good at electronics to perform the above.
There is a thermostat inside (mounted to the side of the magnetron) which senses excessive heat and opens up, disconnecting the power to the oven.
If that's the case, unplugging it and plugging it back in will not fix it. It will come back on by itself after it cools down. That's another indication that it might be a thermostat kicking out.
It might be due to Bad connection. Usually on most Models. it's a bad connection on the low voltage transformer on the circuit board!
But it could be anywhere in the AC supply line, which starts at the house breaker and goes through the AC outlet, the power cord, internal wiring, internal fuse, and a thermostat or two before it gets to the control board.
Last but not least, it could be a faulty Control Board. I am sorry, but there is no short path. You need to check all these in the same order as i mentioned.
Let me know, if needed further assistance.
Hope i helped you.
Thanks for using ' Fixya ' and have a nice day!!
Posted on Nov 16, 2009
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Posted on Jan 02, 2017
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