Re: Propane selector switch
I would guess that you have two propane tanks, one located on each side of your RV? If so, there are two regulators, one "low pressure" regulator attached to the auto changeover valve and one "mid pressure" regulator attached to the supply hose on the "off tank". Both of those regulators, the supply hoses AND the tanks have "safety flow valves" built into them. Those valves, if they detect a "rapid flow of propane" will "shut down flow" as a safety cutoff. If you look at your system, you'll see that there is a long black iron pipe that runs across your RV. The "volume" of propane that "rushes into the pipe" from the "off side tank" to the autochangeover valve is quite large. If you turn on the tank valve too fast, the safety features will "shut down propane flow" before the pipe fills with propane. That renders the autochangeover as "useless" since the tank is "shut down".... Gone are the days of simple 3/8" copper tubing with flared fittings..... <sigh>
So, it may be something as simple as how fast you "turn on the supply valve" on the off tank or possibly a bad "mid pressure" regulator, and many people have had issues with that "little red thing" (the mid pressure regulator).....
First of all, I'd suggest completely shutting down your system. Then turn the autochangeover valve to the "off tank side". Go to that side, and S-L-O-W-L-Y turn the supply valve to on. The autochangeover valve indicator should change from red to green (indicating gas flow from the offside tank to the regulator). Go inside, light your stovetop burners, then your oven pilot, test the furnace system and check your refrigerator gas supply. If they are all working, then go back to the "autochangeover side" and S-L-O-W-L-Y turn that tank valve to on. Once the "off side tank" is empty, the autochangeover valve "should" switch to the full tank and the indicator will change from green to red, indicating that the "tank the arrow points to" is empty. Turn the valve to point to the full tank and the indicator should change from red to green. Remove, fill the empty tank and once connected, S-L-O-W-L-Y turn the tank valve back on. Hopefully that will solve your problem. Otherwise, you've got a faulty "limiting valve' somewhere in your system.
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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