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What does -f3- mean on microwave?

F3 and a beeping sound is on the microwave and I can not set the clock or use it at all. I have disconneted it a few times,but when I plug it back in the F3 appears with the beeping sound and I can't set the clock or use it at all.

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Microwave continues running or making sound when door is closed. Have to leave door open for it to be off. Light still on. Anyone haf this problem?

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The F3 means you have a shorting membrane keypad.

If and when an oven exhibits this code or is coming on or doing anything by itself, this is very dangerous and can result in a fire.

None of us on this site recommend trying to repair this type of problem on a microwave because it can kill you. Toss it and get a new one, PLEASE.

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Thank you for this advice. I was experiencing this F3 error message along with the beeps, so I would plug it in to use it and disconnect it when I was done, but after reading this information, I decided to just toss it and get a new one. It's too dangerous to chance. Thanks

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Thank You for information I have 3 young kids and I have let Willow Ridge Apartments LLC know about this and they have cancel my request. I unplugged the microwave/ fan a few times and it seem ok for a couple of minutes but the acts by itself with loud beeping nonstop and signal -F3- . I have read this info and I don't feel safe to use it or try. What can I do ? Can you please

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Wow, what an exaggeration. The microwave will not kill you. Just unplug it and replace the board. Cost about 150 to 200 dollars. Or you can try just cleaning the board first. A very easy fix. Look on YouTube for videos on how to replace the board.

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I fixed my CODE F3 issue by re-seating the ribbon cables. These cables tend to loosen up with time. So, to fix, you need to remove cables and insert back.

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F3 light is beeping to fix I will unscrew mesh panel then clean or replace wires wires .. it makes sense may be a build up of oil may be the underlying issue .. I'll try that thank you

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It just happened to me to my 1 year old LG microwave . I unplugged it, and it started working again,hope it won’t break cause it’s almost new!!! Our last microwave lasted for over 6 years I think

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Hoping it won't break again doesn't do much to correct a manufactures defect.

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I unplugged it and removed all screws to the cover. Pushed on all contacts/wires to the key board and reassembled then plugged back in and it works fine. Time will tell….If problem persist I will more than likely replace. Don’t need any unwanted fires!

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