I have a Kenmore gas range Model# 362.75585891 and I am not able to light the oven broiler or the oven itself. The cook top is however working. Any idea what is wrong here? I noticed before it completely stopped working that oven was on for 5-10 seconds then got shot off for 2 seconds and came back on for another 5-10 seconds. This was happening for 3 days until it stopped working completely.