Low propane at furnace
With a U-tube manometer I have measured 11" WC at the propane regulator output. When I fire up the furnace the WC drops to just about 10.5". When I measure at the furnace, at the post-valve gauge ou...
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Well this is embarrassing. "I know now what I new then but I didn't know then what I know now."
The "blockage" was a second regulator. When I first bought this van conversion (a 1983) I decommissioned the on board propane tank for fear of it's age (it's VERY rusted). I tapped a tee and propane quick release into the elbow just past the tank, assuming the valve on the tank was regulated to RV pressure. As it turns out, this tee (which I attach an external regulator and tank to when I use the RV) actually went to another regulator which was hidden between the running board and the tank. That second regulator was what was causing pressure to not make it through the line... since I had already snipped the old line to make it easier to remove, I had to just keep going and replace the whole run. I took out the second (failed) regulator and disconnected the propane system from the built in tank altogether. Works like a charm now. The cost of removing the regulator and solving my problem would have been about $3 for a pipe nipple. The cost because I had already started cutting the copper line became $50 for copper and $30 for a flaring tool and much time and effort.
The moral of the story is, despite how awful it is to crawl around under your low-to-the-ground van RV, a 95% inspection is never good enough. Suck it up and look at every inch of the run.
C'est la vie.
The "blockage" was a second regulator. When I first bought this van conversion (a 1983) I decommissioned the on board propane tank for fear of it's age (it's VERY rusted). I tapped a tee and propane quick release into the elbow just past the tank, assuming the valve on the tank was regulated to RV pressure. As it turns out, this tee (which I attach an external regulator and tank to when I use the RV) actually went to another regulator which was hidden between the running board and the tank. That second regulator was what was causing pressure to not make it through the line... since I had already snipped the old line to make it easier to remove, I had to just keep going and replace the whole run. I took out the second (failed) regulator and disconnected the propane system from the built in tank altogether. Works like a charm now. The cost of removing the regulator and solving my problem would have been about $3 for a pipe nipple. The cost because I had already started cutting the copper line became $50 for copper and $30 for a flaring tool and much time and effort.
The moral of the story is, despite how awful it is to crawl around under your low-to-the-ground van RV, a 95% inspection is never good enough. Suck it up and look at every inch of the run.
C'est la vie.
