I have an LG range that no heating element works. F7 error code flashes model#Lre30755st. All the lights and buttons work.
I bought this from a lady and she told me that only the 2 front burners did not work so I tried to trouble shoot it and see if it was the elements themselves but it was not that. then I plugged it in and no burner or heating element works at all. there are 3 computer boards on this range 1 power controll board for the oven and 1 power control board for the stove top and then a third that I guess is for main controls. the 2 power control boards both for oven and stove when I try and turn burners on I can here the electric relay click for each burner I try and cut on. I think the power boards are working fine I think it is maybe the power converter or the main board that is defective but dont know how to figure what is wrong out.
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