[fifties]

I replaced the ignitor for the center grill area about 15 months ago, but the element has again stopped
igniting. Since the original part lasted 15 years, and the Robertshaw 41-205
Model 501A replacement seemingly only about one; would you know if there are
other parts in the circuit that could defeat ignition? The brief print in the
back of the install booklet, and behind the front panel, seems to show a thermostat and a thermal valve,
although I don't know where they are located physically, or if they would
prevent initial ignition.