Checked and found that the SIT valve should be replaced. Also bring an oven thermocouple along for anticipation, because the oven bell for the door was coming down on it. Need one 4531799 SIT valve, 4524648. knob away. and a 4523506. thermocouple for anticipation. Get a 4523127 pilot kit. for the top left burners too. 3-30-18 Replaced top pilots, left side. Replaced sit valve and thermocouple and knob kit for sit valve. Tested okay.