Question about Microwave Ovens
How to remove the magnetron in a samsung model smh7174
If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
But essentially you unplug the power, remove the microwave from the wall mount and remove the outer wrapper / cover.
Discharge the high voltage capacitor and then it should be pretty straightforward, but please do read and heed the safety warnings.
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Posted on Mar 04, 2008
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Posted on Jan 02, 2017
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If there is no heating please do not switch on unless you have confirmed the fault. It is possible that the Magnetron is faulty, the temperature cut off is faulty or the main capacitor is short.The processor seems to work but there is no output trigger or switch on of the magnetron. can be failure of the relay or the magnetron. It is also quite possible that insect can get into the oven and create soft spots. When you switch on these will create a short and make the voltage jump and in the long run damage the magnetron.
So Remove cover after disconnecting , check for dirt/moisture in the cabin, if so wipe clean and dry, check the magnetron and area clean and use an jet air to clean off.
Make sure that the program controller is working if not check power - step down supply, the pads are responding- if not faulty pads- or the door switches, if contact is not through the microwave will not work.
Now keeping clear of the microwave, switch on, use a cup of water inside to test.
If you notice any sparks shut off as the magnetron or the main HT capacitor can be faulty. replace with same type.
If there is heating without any issues, you can use the microwave safely
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