EXTRA LOW BURNER - The rear left burner igniter sparks but the gas burner does not open and gas does not flow to the burner. Is it the gas valve or the starter board? The front left extra low burner work great, but had the same problem that was previously fixed under warrenty.
Answer Patrick, Your most likely issue is the potentiometer 422748 on the front of the range, mounted on the burner valve. Based on your post, the circuit to the burner solenoid 411253 is weak or missing and not allowwing the solenoid to open and release the gas to the burner, for ignition and flame. Good Luck and Thanks