[henson1166]

wont heat,set temp to 300.and push start fan comes on and thats it

[onehotpny]

Originally Posted by henson1166

wont heat,set temp to 300.and push start fan comes on and thats it

Have you tried ohming out elements? need more info like model # and what you have tried so far.

[denman]

The fan will run off of half the line (120 volts) but the elements require the full 240 so i would check the power first.

Try flipping the breaker off/on slowly a couple times. Sometimes you can loose half the line without actually tripping the breaker.
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.
Do this with the heater off and on.
Be careful as 240 volts is lethal !!!

Could also be the oven sensor if the control shows that the oven is ready.

Or could be your control board/timer is toast.