I've got a Sears (Tappan) gas range and recently the ignitor in the oven has been giving my wife a hard time. It'll lite off with no problem from a cold start and get up to temperature. After that when it tries to relight the burner again the ignitor will glow but the gas valve won't energize. I've been told the problem more then likely is not the gas valve but a weak ingitor. The ignitor is in series with the gas valve supposedly and on subsequent attempts to relite the ignitor is to weak to allow power to pass to the valve. Just because it is glowing doesn't mean the ignitor is OK. Does that sound practical? Big difference in price between a valve and an ignitor!