F3 error code on stove has disabled the oven from opening. I need help in opening the oven and advice as to how to prevent another occurrence. The stove product number is 790.75761002 this however isn't listed below.

I appreciate your post, Katherine!
Based off the information you have provided your Frigidaire range is displaying an "F11" error code after a power outage. An "F11" error code stands for a shorted keypad. I would suggest performing a reset on your range and you can do that by flipping the household circuit breaker off for at least ten minutes. If that does not work you may need to have a professional technician out to provide proper repairs. This will prevent you from any unnecessary part purchases. Hopefully this is helpful. -Matt

Thank you for your inquiry, Lucie!

From what you have described your Frigidaire oven lock is stuck open and you are receiving error codes "F9" and "DR". The "F9" error code stands for runaway temperature (overheating). This could be an issue with your RTD (Resistance Temperature Detector) or the EOC (Electronic Oven Control). I would recommend performing a reset on your oven and you can do that by disconnecting from your oven for ten minutes. The "DR" code means that the door is not closed or the door latch is not recognizing the door is closed. This could be an issue with your door latch or control panel. If the reset does not help correct your issues I would recommend having a professional technician out to perform a proper diagnosis and repair. Best of luck! -Matt

The Fault Code/s will show up in the appliance Display
F0 - No Alarm Signal
Replace Main Electronic Control
F1 - Door will not Lock
Check door lock. Is Door Lock Getting Power
F2 - Door will not Un-Lock
Check door lock. Is Door Lock Getting Power Supply? Check Control Thermostat
F3 - Self Test Error
Disconnect Appliance from Mains Supply, Wait 5 Minutes and then Reconnect to Mains Supply
F4 - Shorted or Open Circuit Oven Temperature Sensor
Replace Oven Temperature Sensor, Check Sensor Harness Connection between Sensor and Control Unit
F5 - Relay Contacts Failed - Sticking
Replace Main Electronic Control
F6 - Power Board Temperature Too High
Check Correctly Installed, Check Cooling Fan Assembly, Ducting and Airways
F7 - Incorrect Polarity - Mains Supply
Check Mains Connection - Live & Neutral round the wrong way
F8 - Power Supply to Interface Problem
Check Wiring Harness, Replace Main Electronic Control
F9 - Procesor is Auto Resetting
Disconnect Appliance from Mains Supply, Wait 5 Minutes and then Reconnect to Mains Supply

Its an error must be the blower motor..one blower will blow air to cool tge chamber. try to open the unit & look inside

Good Afternoon Friend,

I understand you've recently replaced the elements on your Frigidaire oven and that it is still not working. May I have your model number please? The serial tag, which lists your model number, is normally located in the storage drawer, on the right side if you have a range. If you own a wall-oven please check the front of the oven, on the left side, as you open the door. Also, think about what may have happened prior to this occurrence. For instance, did you notice any strange functions or any other error codes prior to this issue? With this information I can better determine what may be causing the issue at hand. Thank you! - Z

F15 Controller self check failed. Replace the EOC.
Here's the code explanation

Good Afternoon Friend, thank you for allowing me to assist you!

I understand you are experiencing an issue with the oven of your Frigidaire range. May I have your model number please? You can normally locate the serial tag (which provides your model number) in the storage drawer, on the right side. Also, think about what may have happened prior to this occurrence. For instance, did you notice any strange functions or any other error codes prior to this issue? Do the burners/elements work? With this information I can assist you better in pinpointing the problem.

Meanwhile, let's try resetting your range by either unplugging it or flipping the household circuit breaker to the off position. It is important to wait approximately ten minutes and then turn your range on. If resetting the power does not correct the issue, could you please advise me if the issue continues or provides an error code. Thank you! -Z

The F4 error means that the oven temperature sensor is giving an open signal. Probably the oven temperature sensor needs to be replaced. However, sometimes, the wiring harness between the sensor and the control unit has a fault or the control unit (computer) is bad.

I hope this helps.

Cindy Wells

Your oven tempertaure senser is bad (RTD)

Well the solution was to unplug the 220Volt connection for one minute--plug it back in--reset the clock, hit start and bingo it worked. I found on the back of the stove the technicians schematic, and error codes in a plastic envelope that described the procedure for finding--isolating--and solving the issue by the use of the error codes, which were not avaialable online anywhere but in the diagram and description for a technician's use.
I saved myself $109 dollars by avoiding the call out, but still my breakfast was four hours late!