Gas problem

monzer

monzer

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I had another thread regarding my problem with gaslow but I'm trying to narrow it down a bit here.

2 11kg bottles feeding a manual changeover valve then a regulator.

1 bottle is empty and one is near full. If I have had the hoses off the changeover valve I will get gas flowing to the van after I connect them again. If I keep the hob burners or heating on it will work fine, until that is, I switch it off. When I get up the next day neither the burners or heating will ignite.

What could be stopping the gas getting from the full bottle to the appliances?

Right now I shut off the bottles valve for a bit then reopened it. I got a good flame at the burner for about 20 seconds then it died. I can't work this one out and will be going off electric soon so I will be needing gas.
 
Try removing the change over valve to rule that out. but it sounds like the regulator failing
 
Oh,sorry,it’s that sort of a gas problem. I thought it was a seasonal query to do with Brussels Sprouts. :xrofl: :unsure:
 
Sounds like a sticky regulator. As a short term fix maybe give it a calibrated whack to see if it unsticks but sounds like a replacement is needed

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If you leave the gas turned on does it eventually come good??
Is the regulator switching off as it thinks the sudden gas flow is a leak----- I have had a few regulators like this------ VERY common on American stuff------ even our camping gaz regulators have this feature.
Just a thought
 
Sundowners said:
If you leave the gas turned on does it eventually come good??
Is the regulator switching off as it thinks the sudden gas flow is a leak----- I have had a few regulators like this------ VERY common on American stuff------ even our camping gaz regulators have this feature.
Just a thought
Click to expand...
If I play about with the hoses I can get gas flowing and once the appliances are on, they will stay on. It's when I turn them off and leave it for a bit that it doesn't seem to want to flow again.

Not sure about the regulator but it shouldn't be getting a 'sudden' gas flow so it should be coping ok.
 
Hope you get a remedy soon. Must be getting awfy cold up there now.

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Just out of interest, when it does work do you get a nice blue flame or is it yellow? I've generally found that to be a sign of the regulator failing
 
Sundowners said:
If you leave the gas turned on does it eventually come good??
Is the regulator switching off as it thinks the sudden gas flow is a leak----- I have had a few regulators like this------ VERY common on American stuff------ even our camping gaz regulators have this feature.
Just a thought
Click to expand...
I don’t know the regulator in question BUT , many domestic lpg regulators have a under pressure shut off ( UPSO ) & a over pressure shut off ( OPSO ) which usually have a reset button , I think Sundowners may be on the right direction 👍
 
Jake vE said:
Just out of interest, when it does work do you get a nice blue flame or is it yellow? I've generally found that to be a sign of the regulator failing
Click to expand...
It sputters for a bit and then goes in to a healthy looking flame.

I was going to go out to investigate some more but I fell asleep watching the new grand tour 😴😆

So I will update in the morning.
 
Almost certainly your regulator ⚠️
Post a picture of your regulator and changeover valve
 
Is it possible you have a gas leak?? When you turn bottle off, pressure should remain in the gas system.
Why are you turning bottle off?? Once on it should normally be left on??
Are all appliances turned off when turning bottle on??
What you have sounds normal IF you have an auto shut-down regulator.
They are designed to shut the gas off should a big leak suddenly occur.
 
monzer said:
If I play about with the hoses I can get gas flowing
Click to expand...
Could it be the hose the problem, maybe it delaminated inside and when you play about with it, and once open gas keeps it open.
 
Sundowners said:
Why are you turning bottle off?? Once on it should normally be left on??
Click to expand...
I don't normally turn bottle off but it shouldn't really make a difference should it?
Sundowners said:
Are all appliances turned off when turning bottle on??
Click to expand...
Yes everything is off when I turn bottle on.

Nothing to suggest there is a leak.

I'm still working but will have the van in workshop in an hour or two.
 
Manic said:
Could it be the hose the problem, maybe it delaminated inside and when you play about with it, and once open gas keeps it open.
Click to expand...
New hoses and I have had them off and had air through them. They seem to be fine although those washers do seem to perish quickly.
 
monzer said:
New hoses and I have had them off and had air through them. They seem to be fine although those washers do seem to perish quickly.
Click to expand...
Oh well just a though.

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Just re- read the thread-----
If you turn empty bottle off and just use the full one does the gas run ok??
I am wondering if the regulator is shutting off thinking the empty bottle is a leak??? --------just sitting here thinking ---- can't get my brain into gear!!!!!
 
Sundowners said:
Just re- read the thread-----
If you turn empty bottle off and just use the full one does the gas run ok??
I am wondering if the regulator is shutting off thinking the empty bottle is a leak??? --------just sitting here thinking ---- can't get my brain into gear!!!!!
Click to expand...
I did have it running while the empty bottle was off but same problem.
 
TheBig1 said:
Try removing the change over valve to rule that out. but it sounds like the regulator failing
Click to expand...
We have a winner..... Well so far.

I have took the changeover valve out the equation, connected the full bottle straight to regulator and everything is working inside.

Now I have been here before and it has stopped working later so I will have to wait and see but its looking like a faulty changeover valve at the minute.
 
If you need to replace the changeover valve suggest you buy the manual Gaslow with pressure gauge.

Let's you know when pressure getting low ie. gas about to run out. Also, good for leak detection in the pipework. Been using one for years and wouldn't be without it - saves faffing around with leak detection spray or washing up liquid.

01-1630_ml.jpg

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monzer said:
Both brand new but I will try that in the morning.
Click to expand...
Sounds like the bathtub reliability curve. New things are often dead on arrival, or die shortly afterwards. Peak reliability is often at a couple of years old!
 
Wagoneer said:
If you need to replace the changeover valve suggest you buy the manual Gaslow with pressure gauge.

Let's you know when pressure getting low ie. gas about to run out. Also, good for leak detection in the pipework. Been using one for years and wouldn't be without it - saves faffing around with leak detection spray or washing up liquid.

View attachment 450756
Click to expand...
That's what was fitted. I'm not going to say it was at fault 100% as next time I'm in the van the boiler might not fire but I gave it a good test earlier and it was working fine.

How do you know if you have a leak with the valve? Gotta be honest I hardly ever look at the gauge especially not when I have the wave fitted.
 
Do you have a regulator with a safety cut out. In that case whenever you turn the gas back on you need to press the button on the regulator and count to 10 before you let go of it. Also do you have pigtails with anti-rupture cut outs? If so there will be a button at the bottle end of each pigtail and, again, evert time you switch the gas back on you need to press the button.

A quick photo of your system will show us if you have these safety systems.
 
monzer said:
How do you know if you have a leak with the valve? Gotta be honest I hardly ever look at the gauge especially not when I have the wave fitted.
Click to expand...

Turn on one gas bottle to pressurise the system. The gauge should read "all green". Turn off the gas bottle. Wait, say 15 minutes, and check the gauge. If it's moved, say showing a bit of the orange sector, you have a leak. Not necessarily at the changeover valve but elsewhere in the system. If you have a leak you can identify the problem area by turning on and off the internal shut-off valves. Best to start with all the internal shut-off valves closed. With these closed the leak would be between the bottle and downstream of the regulator.
 
peterc10 said:
Do you have a regulator with a safety cut out. In that case whenever you turn the gas back on you need to press the button on the regulator and count to 10 before you let go of it. Also do you have pigtails with anti-rupture cut outs? If so there will be a button at the bottle end of each pigtail and, again, evert time you switch the gas back on you need to press the button.

A quick photo of your system will show us if you have these safety systems.
Click to expand...
Away from the van now but I did take this earlier :

20201223_101936.jpg

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