I have a perplexing problem that has happened twice now. The boiler will not fire. The zones are calling for heat and opening but the boiler will not fire. I turned off all power to the boiler for a few hours and then put power back on. The boiler fires and works for a few days. Then same thing happens again. I turn off power for an hour or two and the boiler fires. I tried to see if the boiler will fire after a few minutes of having no power but it will not. The transformer is warm to touch and I had replaced the circuit board about 6 months ago. My boiler is a Super Hot and I was wondering if this sounds like a transformer issue?