I have some issues with this option. Initially jetpuffed a few times and then ignited, ran for long enough to produce hot water at the sink flow through the heater core for the plumbing bay,and I believe I can hear the water pump circulating, however, the espar thermostat in the cabin does not turn on the bus blowers when turned up through a click at ambient temp. It also has subsequently quit igniting altogether and a limited inspection of the nossal and plug turned up OK. How do I check if the fuel pump is working or if its clogged? Is there a relay for the blowers? How about it? Anybody?