Of course you already checked the fittings for tightness so that the propane didn't leak out ... is it possible that you didn't get a full fill on the propane tanks? It takes us quite some time to bleed the air out (and the lines don't stay full from week to week occasional use) of our propane lines ... so, I generally turn on the furnace as it uses the most propane. You can hear the refrigerator, hot wanter heater, and the furnace as they try to light before the propane gets that far into the lines.
~~~~~~ mefly2 ~~~~~>>>
AIR 44105 /WBCCI - formerly 2015-1; Yamaha XT250
:>) ducts are now in a row w / 2015 ducted air :>)
* 2015 Duramax 2500 Diesel * Honda EU3000iS
<>2015 International LE Eddie Bauer FB25<>