this is a wall oven .when i turn it on it does not heat up at all upper or lower elements do not get hot.this happend all at once… what could this be?or what part do i need?
Here are your parts
http://www.appliancepartspros.com/partsearch/modelsearch.aspx?model=fes367abg
Here is the tech sheet
http://manuals.frigidaire.com/prodinfo_pdf/Lassomption/318045067.pdf
Something is wrong the model number comes up as a slide in range not just an oven.
First thing you want to do is check the power to the unit.
Try flipping the breaker off/on slowly a couple times, sometimes you can loose half the line without actually tripping the breaker.
If this does nothing, check the voltage at the plug
L1 to L2 should be 240 volts
L1 to Neutral and L2 to Neutral, both should be 120 volts.
If OK
Unplug the unit and check the wires at the terminal strip in the machine to make sure none are loose or burned out
If OK
Check the power at the terminal strip.
Be careful as 240 volts is lethal !!!
If the power is good then it is probably the control board though some units have a thermal cutout that can cause problems.