MODEL NUMBER CPLEF398CCB. I tried to use the self clean and I received the f9 message. I am able to unlock door and you see the lock moving from lock to unlock. It unlocks every time i clear and restarts trying to clean but always returns to f9 message. I also tried turning it off and holding door switch. How can I get it to work?

You either have a bad latch assy. or a bad computer board or a broken wire.this can be an expensive fix and the problem with self cleaning ovens is when you self clean them the temp. gets up to 1000 degrees and this damages the electronics in the machines,personally i would never use the self clean feature i clean mine by hand with easy off.people do this near the holidays and then the oven doesn't work parts have to be ordered and it could take up to 5 to 10 days or longer to get parts.don't ever self clean your oven when a holiday is coming up so this doesn't happen.if you can still use the oven just forget about the self clean if the error keeps you from cooking you'll have to find out what part is bad to fix it it sounds like your latch is working this code means the computer board thinks the door isn't locked if you want to change out the latch motor it's pretty easy,unplug the oven,pull it out and remove the back wall,the motor will be on the top right hand side looking at the unit from the back the part number is 316464301 this part is around 55 to 75 bucks depending where you get it now if it still does it the clock assy. is around 300 bucks part 316207600 so i would change out the latch assy. first if you need this repaired.hope this helps you out one more thing did you try unplugging the oven it could reset the computer board,leave it unplugged for 10 minutes and then plug it back in,don't try to self clean it,put it on bake and if the code doesn't come back great who cares about the self clean