Microwave quit microwave does not do anything light doesnt even work. The screen reads F3

The main circuit board quit working. Replace unit. ITs cheaper to replace this unit than to repair it. By the time you invest the parts/labor for repair, you are over half way to a new unit w/warranty.

I thought I was helping my daughter out by clenaing her kitchen, well the inside of her microwave was pretty bad and very hard to clean so I was a spray to loosen up the crusted on food. In doing so it started beeping and flashing F3 and now we can't get it to do anything. How do we saolve this?

my ge microwave oven model HVM1540LMICS reads "LOCKED", how do I unlock?

I have the same problem. However when I unplug the microwave from the wall outlet, let it sit for 10 seconds, then weird codes appear on the top line. Reset the clock and it shold work just fine.

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The error code F3 indicates an oven sensor problem. The oven sensor is most likely the failed part. The oven sensor probe must have the correct resistance readings at specific temperatures. When the electronic range control (ERC) cannot identify the correct resistance of the oven sensor or the resistance is way out of specs F3 will display.
I recommend calling a service technician to diagnose and repair your oven.

microwave quits working and F3 comes up on the readout - along with a series of beeps - pressing any of the buttons on the touchpad does nothing - The F3 stays there and beeps intermittently

Our 17 year old Tappan Microwave Model # 564878 quit heating. Everything else works. Hard reset did not remedy the problem. Any suggestions?

Hello,

I’ve read through your problem in an attempt to find a solution to my own similar issue with my microwave oven. Other solutions (like unplug appliance overnight and reconnect to power source the next morning) did not work for my appliance.

Just as I was about to call it quits and go out to purchase a new microwave; I gave it one last try. This time, instead of pressing any and every single button on the keypad, I decided to press BOTH the "Stop/Clear" AND "Start" buttons AT THE SAME TIME. . . . . Voilà! This worked for me, but sadly, it's now May-2008 and I'm pretty sure your own microwave is long gone, since your posting appears to have been quite some time ago. Well, hopefully others that stumble through these pages with similar issues may find some assistance with my approach. Oh, and btw. . .I got this idea (which worked) from remembering the instructions on how to reset my cellphone. Many thanks, ~paul

F3 would be a shorted keypad. This is not too hard a job for the do-it-yourselfer.

If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383
Otherwise, we will replace the keypad for you for $39.95 plus part cost.

If you need further assistance or would like to inquire about service, please feel free to contact me directly through the links at our site: http://tinyurl.com/yzjozk

We're happy to help and we appreciate your thoughtful rating of our answer.

On a GE microwave F3 means you have a failed keypad.

We replace these for customers nationwide with our guaranteed $39.95 service.

If you might want to replace it yourself, I have uploaded a handy guide with pictures showing you what's typically involved. It's here.

Please feel free to contact me directly if you need more help.

We're happy to help and we appreciate your thoughtful rating of our answer.

William E. Miller, AS-EET
[email protected]
http://www.microwavedisplay.com