propane tank switch

[231jasonS]

My switch over valve is supposed to switch on its own when one tank runs dry but it has not the last couple times it ran a tank dry.



I have to move the lever over towards the full tank. Then it takes a long time (hours) to switch the valve from red to green.



I dont know why this happens, is it getting air in the lines or bad valve?



I sucks when you run dry in the middle of a cold night.

 

[richardcoxid]

How old is your changeover regulator valve?



Remember the Propane regulated pressure is only 11 inches. The diaphragm has probably gotten hard with age or there is a wax buildup in the valve itself causing it to stick. I don't think think that the regulators can be rebuilt.



For the cost/safety I would just replace it with a new one, it may even be an updated version.



I replaced my 10 year old one last fall about $45 I think.

 

[WestTN]

I just changed my valve because it stuck. I guess 20 years is a pretty good life for one of them.

 

[231jasonS]

MIne is not yet 2yrs old. I dont know if im doing something wrong or what.



I set the switch to the middle where i think its supposed to be for the "auto" change over but it does not work.



If i move the switch to one tank (pointing to one side) it will work until it runs dry. Then when I switch it over it seems to lose prime (if thats possible). It does not switch to the other tank. The indicter stays on red,even on a full tank.



It acts as if the switch is still towards the empty tank or the full tank is closed (which its not)

 

[PWitteveen]

The changeover is supposed to happen automatically when you have one of the tanks selected. Pointing the selector up to the indicator is not correct, you have to select a tank. My guess is you have a faulty valve.

 

[jeepit]

The changeover is supposed to happen automatically when you have one of the tanks selected. Pointing the selector up to the indicator is not correct, you have to select a tank. My guess is you have a faulty valve.

on both tanks turned on...

 

[RVTRKN]

Switch your tanks around to make sure its not the tank and if it does the same thing, its your regulator. They don't make anything worth a crap any more, so it being new means nothing. It is not that expensive, just annoying.

 

[231jasonS]

Switch your tanks around to make sure its not the tank and if it does the same thing, its your regulator. They don't make anything worth a crap any more, so it being new means nothing. It is not that expensive, just annoying.

Amen to that..... I checked tanks and even swapped in my BBQ tank and it still will not switch over. ... ... ... ... ... . any recommendations on a new one?

 

[RVTRKN]

Cavagna Group is what I used when I changed over to the new tanks a few years ago. I liked the fact you could clearly see the indicator when empty, but any will work for you. They make a sensor now that has a lite in the RV and will lite up alarming you that your primary is empty, Now that you need new ones it might be a good time for that as well.

 

[DennyDay]

231jasonS

I've just purchased a new Marshall regulator/change over valve to replace a chineese unit that worked because I didn't trust it. The new American Made Marshall changes over it self about 50% of the time. The old one worked every time . . . . I've emailed Marshall, but they never answered me back. Don't buy a new one! at least a US made one - - - I don't have any idea what the problem is. If any one has a clue I would appreciate a suggestion.



Denny