I have a model FGF354BGWC Frigidaire stove that is converted for propane. When I turn on the oven, the pre heat light comes on, I press the button, the light above the temp setting comes on, the igniter glows but the oven does not always light. Sometimes it lights then goes out. Sometimes you can hear a barely audiable high pitch squeel just before it lights, and sometimes you can smell propane before it lights. I've been out of work a lot over the past two years, and don't have the money to replace parts hoping to get the right component, or to pay a service tech to come trouble shoot, so I'm hoping someone knows what the problem is and can advise what should be replaced.

Ovens