20 Most Recent Frigidaire 27 in. Electric Double Self-Cleaning Wall Oven - Page 5 Questions & Answers

Try the liquid that mechanics claim to do all. WD-40.

cool down before it opens if you started the clean timer, f8 code, might be that its on a timer

possibly you accidentally pressed clean button

Let it cool down and Unplug for 5 minutes

Let it cool down if still hit and Unplug it for a few minutes.

F20 is a communication error between the display control board and the relay control board. Pull the oven forward and remove the back panel. Check the wire connections between the display board and the relay board. If the connections check good, replace the display control board

Most likely relay on board for that element is defective

Check bake element. It’s probably bad.

The communication between the oven user interface and the touch panel cannot be initiated.

reboot it or restart it.

http://manuals.frigidaire.com/prodinfo_pdf/Lassomption/318204143.pdf

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File a claim with your locale utility

You have a defective temperature sensor most likely.

Have you checked fuses? Otherwise the control switch or thermostat may have failed.