My Microwave Won't Heat Up It Is Asking For A Code

My first thought would be a blown magnetron. On microwaves, these can generally go dead, usually with a popping sound. I think there might also be a fuse in your microwave, but I do believe that if it was a blown fuse, your MW would not start up. The technician should also not forget the door switch since some of them can cause the same issue. My solution would be to A: Call a trained appliance technician to replace the magnetron or B: buy a new microwave. Microwaves have really gotten very inexpensive and probably will cost you less than the parts and labor for the repair. I STRONGLY SUGGEST NOT TO MESS WITH THIS. MICROWAVES ARE TRULY DANGEROUS. You do not want to fry yourself. Strictly from an academic point, it could be the power diodes or a defective capacitor. Your microwave may turn on but does not heat. Remember the frying comment above, this is the part that will not just curl your hair, but will most certainly be a shocking experience. DO NOT MESS WITH IT.The magnetron can be tested by setting an ohmmeter to its highest resistance scale. Then, touch one of the meter's probes to a magnetron terminal and the other one to the metal magnetron housing. The test should produce a reading of infinity - indicating an open circuit.

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Again, this is for academics only, DO NOT ATTEMPT TO FIX IT YOURSELF unless you are trained in high voltage.Good luck and STAY SAFE.

Thanks

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Techygirl