Furnace Sail Switch on 2004 Summit?

[TheIceKing]

Anyone know where the "sail switch" (which controls propane flow to furnace) could be found on a 2004 Summit? My furnace seems to blow cool air when the t-stat is set to 80 degrees, so it does not seem to be working properly. Or any other ideas?

[TheIceKing]

Disregard, I located the switch after removing the furnace. Although the switch is not the issue.....I am still trying to diagnose why my furnace will turn on, blower cycles, igniter sparks, burner lights, but then immediately blows out and will not re-ignite. I am thinking that maybe my propane pressure (11" is required per specifications) is insufficient. Just not sure how to check this. Anyone ever check their propane pressure?

[noluck]

what is the flame color of your range? it will indicate the pressure you have

[TheIceKing]

It turns out my regulator was bad. I replaced it and now all appliances work properly under based on 50% rule.