Lite On Laars Lite 2 Heaters: 250,000BTU MV Heater "monday tube" Questions

...tube in the heater until today (Monday) so I had a leak, which was running inside the heater. I have been able to light my pilot light and so far, it is on, but the heater does not engage. I just ...

...tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air ...