I need help with this please. What is the F14 error.
Here is a tech sheet
http://manuals.frigidaire.com/prodinfo_pdf/Springfield/316904001.pdf
Looks like a keypad problem.
First remove power for 10 minutes or so and then give it a try. This may reset the board.
If this does nothing.
Disconnect the unit from power, unplug the keypad at the control board and clean the connectors then reconnect it and give it a try.
Use electronics cleaner or isopropyl alcohol and a tooth brush to clean them. Just make sure all the solvent has evaporated before reconnecting.
If the ribbon cable is the type where just the insulation is removed (no connector) the contacts can be cleaned with a pencil eraser. Do not use an ink eraser as iit is too abrasive.
If this does nothing
Check it with a meter as shown in the tech sheet to confirm it is shot.
If it is OK then the problem is probably on the control board itself.