Your symptoms seem to indicate that the igniter is glowing on the burner but that it will not light. If you have not verified that the igniter is glowing, I recommend that you pull the bottom panel inside the oven and take off the burner baffle and set the oven to bake at 300 degrees. Observe the igniter to see if it glows. If it does then this verifies that the relay on the control is working and that the circuit is complete. If the igniter glows, the most likely failure is the igniter. Even though it is glowing, the resistance of the igniter is likely not decreasing enough to allow enough current flow through the circuit for the gas valve to open. If the gas valve intermittently opens but does not stay open to allow gas flow to the burner, then the same failure likely applies.
Replacing the igniter should fix this problem if you observe the situation described above. You can order a replacement igniter from the
website. The part number of the igniter is 5303935066.
If the igniter is not glowing or cycles on and off, then you could have a problem with the control board or a loose wiring connection.
If you need more help, resubmit your question with additional details.