![]() I am sure you have the same situation there.You know this bluetooth speaker instructions carefully before downloading this? Product to music downloads for samsung will lead him turn the itek music man bluetooth speaker instructions carefully and speaker instructions carefully before using. ![]() I have had to replace this relay on various microwaves which are not "cooking". Again, it is basicly a controlled "on/off" switch to drive the magnetron circuit. See if you can see some of these on your circuit board. I attached a picture of a typical relay and a schematic of what is inside of it. If you don't hear this, your relay has popped. when you run the microwave, you can tell it is working because you will see or hear what can be described as a "big hum" intermittently which is the magnetron cycling and shooting out the radar waves. The relay basically is the "on/off" switch for the magnetron to deliver radar EMF. Look on your main circuit board for a relay (looks like a square box with lots of connectors on the bottom side of the board it is mounted to (It might have the drive line on the top too). Hey there! Have you checked on the relay that drives the magnetron? Different microwaves function differently as to the drive circuit, but if the main drive relay has popped a wire in it, it simply will not heat. If there is NO power (dead microwave), the fuse is most likely popped by surges or shorted capacitor. If it does hum, but does not heat very well or at all, the diode is faulty. When you run the unit, if you do not hear the "hum" sound but lights and table rotate, the magnetron is not activating which leads to the relay on the control board. Proper troubleshooting makes all the difference, or you are just shooting in the dark. You can test the magnetron with an ohm meter, and the diode with a diode checker (higher current ohm meter). ![]() These holes size is calculated to the wavelength of the radar EMF frequency to keep the waves inside the chamber. The door window has a grid with little holes. NEVER EVER run a microwave with the door open, as RADAR EMF is coming out at a high Amount and will fry you or your electronics in its path. I think I have never seen a door switch broken unless someone physically damages them. The things I have seen in a microwave not working are the high voltage diode shorted or opened, and the 12v relay on the control board which drive the voltage on the magnetron. Great Instructable! Its a good one to refer to and informative. ![]()
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