I have a very old Magic Chef gas range. Every time I use the oven, I have to open the bottom drawer and fan air towards the pilot light at the back to get the flames going to heat up the oven. The pilot light does come on when I turn the oven temp. knob, it's that the long rows of flames do not light up unless I fan air into the bottom of the oven. What is the problem? Why do I have to fan it every time? And can this be fixed, or is the range just too old? Please help!