Bordercollie wrote:
We had an old class C that needed to have the gas cooktop or water heater operating for a while to clear propane lines of "air bubbles" before the cranky old furnace would ignite and operate normally. Left sitting for a while, problem of air bubbles in gas line would recur. Changing the regulator might help. Furnaces have sensitive lockout devices that prevent ignition if everything is not right. Try the "tech issues" forum. Old furnace problems are very common. There are orifices, sensors, electrodes, sail switches, circuit board contacts and circuit boards, etc, etc.
So maybe if I run the gas cook top and propane water heater this could clear out the bubbles? How long? Maybe a half hour or so?
