furnace not lighting

[revrusty]

Just got back from our annual vacation with our 1 month old Cougar 30 RKD. From Virginia to Idaho and back. On next to last night, ran out of gas during night. connected to full tank of gas but furnace will not ignite. Fan will run for 20 seconds or so as normal but no ignition. Read in book to bleed the line by lighting stove and did that. Also cooked breakfast so burned for long time. Still no furnace ignition. Even stopped at a camping world next day and was told to disconnect gas line and then reconnect and slowly turn on gas. No luck. Then told " Sorry, we don't have time to look at it."

Made it home with the electric fireplace but hoping for help to get furnace working. Thanks for any suggestions.