Gasless

Howdy peeps

Had the habitation service monday , gone down to the motorhome today to check alls ok ........ and NO gas at all cooker fridge or heater .... all taps turned on and little yellow tap on underslug regulator on , gas tank half full .iam at a loss , is there a saftey cut of switch that could need resetting .......... HELP ,......... although iam in no rush to go anywhere lol

Cheers guys

shortstock wrote:all taps turned on

Is the appropriate tap on the gas manifold - as shown in the diagram on page 7-4 of the Owner's Manual - turned on?

Roopert wrote:

shortstock wrote:all taps turned on

Is the appropriate tap on the gas manifold - as shown in the diagram on page 7-4 of the Owner's Manual - turned on?

yes ALL taps turned on and so is regulator tap

Am I correct in thinking that your AS has a gas tank fitted ?

I believe there is a isolation switch on the tank where you can turn off the gas supply for ferry or Chanel journeys 

Terry

Eltel wrote:Am I correct in thinking that your AS has a gas tank fitted ?

I believe there is a isolation switch on the tank where you can turn off the gas supply for ferry or Chanel journeys 

Terry

yeah thats underneath the van a little yellow tap on the regulator ......

There's s large turn tap actually on the tank as well as the regulator. Remove the black cover on the tank and you'll see a silver coloured knob about 1" diameter. Engineers often leave that closed after they have done their pressure test.

Paulmold wrote:There's s large turn tap actually on the tank as well as the regulator. Remove the black cover on the tank and you'll see a silver coloured knob about 1" diameter. Engineers often leave that closed after they have done their pressure test.

just messaged the service guy .... only one he turned off was regulator one ....... iam at a loss ...unless regulator has stuck closed ~?

Well, if that is the case you could console yourself a little bit by being assured that the engineer probably did carry out the test. What if you had driven off 200 miles after the service and found no gas at 9pm when the engineer is in bed?
I am as guilty as anyone for not checking work as soon as it has been done. You might feel a bit of a critic if you run round and check everything before you leave a garage or before you let the mobile mechanic go, but here is an example of why you should do just that.

You haven't got a regulator with a green button have you? I wouldn't think so, but if you do, get a biro or something similar and push it in for two or three seconds. If you hear a rattle wait till it stops. this is an auto-cut off valve but I don't think they are fitted to the under floor tanks. I assume yours has an under floor tank?



Silly question........ the tank wouldn't be empty by any chance? Years ago there was a lady who bought a new moped. After 200 miles it stopped and she sent it back to the dealer who spent four hours trying to figure out what was wrong. Eventually they found there was no petrol in the tank. "Oh, do you have to put petrol in it? " That was almost as daft as the 'technicians' who spent four hours trying to find out what was wrong.

What I would do is to undo very slightly the nut where the pipe from the tank arrives at the manifold, which in my Nuevo is in the wardrobe. You should hear a slight hiss or smell a bit of gas. Don't worry about explosions, the mixture has to be 15 of air to one of gas otherwise it is not combustible. If you get gas coming from there, you know you at least have a supply. It sounds as if you won't have any there because if you did, it would run through the manifold to the appliances. Obviously do the nut up tight whether or not you hear the hiss or smell gas. If there is none there you will have to work your way back towards the tank undoing connections until you find some gas.

I would check the tap on the tank itself as Paul suggested.

Apart from the possibility that the engineer did in fact turn it off (or not) it needs to be checked and eliminated before anyone can offer further suggestions.

Please let us know when you have done it.

I did put a post on here some time ago about a similar situation. I had driven the van back from the habitation service and found the gas not working. The dealer sent a technician out and although everything had been turned back on after the habitation, the technician who came out said it had closed down.  He explained that if the gas is turned on too quickly at the tank, it simulates a crash movement and shuts itself down. He did sort it easily but it required more than simply turning it back on.
I have no idea if his information was correct but he seemed to know what he was doing and fitted something in the tank area so that everything worked correctly.

Gromit wrote:I would check the tap on the tank itself as Paul suggested.

Apart from the possibility that the engineer did in fact turn it off (or not) it needs to be checked and eliminated before anyone can offer further suggestions.

Please let us know when you have done it.

ive read anti clockwise on knob to open ....that correct ?

I presume anti-clockwise is open, as is usual.

Merv - I don't think Shortstock will have the anti-crash (Secumotion?) gadget fitted to his van. I think that was first fitted as standard in 2016.

I'm not certain though! It might say in the handbook, but I wouldn't guarantee that either! 

merv wrote:I did put a post on here some time ago about a similar situation. I had driven the van back from the habitation service and found the gas not working. The dealer sent a technician out and although everything had been turned back on after the habitation, the technician who came out said it had closed down.  He explained that if the gas is turned on too quickly at the tank, it simulates a crash movement and shuts itself down. He did sort it easily but it required more than simply turning it back on.
I have no idea if his information was correct but he seemed to know what he was doing and fitted something in the tank area so that everything worked correctly.

That is absolutely correct merv. With a bottle regulator setup there is an additional cast aluminium thingy like a space ship with a green button. If the vehicle is in a crash, or indeed as I found out you even stop fairly sharply, not enough to skid, this device cuts off the gas. Also it cuts off the gas if there is a sudden outrush of gas from the cylinder because it thinks the pipe has been cut or damaged.
You might try turning the gas off at the tank knob, then turning on an appliance for three seconds to release any gas in the pipework, and then turn on the tank knob very slowly just to fill the pipes with gas. Do go and look for a button you can press in somewhere though.

Gromit wrote:I presume anti-clockwise is open, as is usual.

Merv - I don't think Shortstock will have the anti-crash (Secumotion?) gadget fitted to his van. I think that was first fitted as standard in 2016.

I'm not certain though! It might say in the handbook, but I wouldn't guarantee that either! 

mines a late 2015

Gromit wrote:I presume anti-clockwise is open, as is usual.

Merv - I don't think Shortstock will have the anti-crash (Secumotion?) gadget fitted to his van. I think that was first fitted as standard in 2016.

I'm not certain though! It might say in the handbook, but I wouldn't guarantee that either! 

i asked the engineer about this and he wasnt sure .............

The tank knob has arrows on it showing direction to turn, also the words open and close.

If it is a late 2015 it might just possibly be built to 2016 regs which is when the auto-shutoff became mandatory.

Thanks Gassy.

I thought it was 2016, but wasn't sure. 

Found myself in a similar situation regarding the lack of gas flow after having new crash regulator fitted under warranty.
I contacted my dealers service department who informed me that there’s a reset button / plunger on the regulator located under the van forward of the gas tank.
Access to the button / plunger is restricted as it’s approximately 70mm from the skirting on the Nuevo I used a plastic rawl plug as anything longer will not fit.
Once reset everything worked okay,an explanation of how the valve works can be found on the Truma website .
The tech guy explained that just going over a speed bump could be enough to “shock” to trigger the safety valve so the rawl plug is now part of my onboard tool kit

Well the service engineer is coming friday to sort ............ BUT wait for it ..... went down this morning to check on MoHo , thought give it another try , turned hob on , whoosh lit 1st try, fridge good, heating good, so all gas now working ok very weird.

so cancelled engineer. thanks for all your suggestions peeps and happy camping

Without risking handbags at dawn, were you too impatient? 

Having to fiddle with the igniter for several minutes (well, two anyway!!) before the gas will light is not unusual when the van has not been in use for a while.
In theory air cannot get into the system, but it obviously does! 

I can't think why it would happen after a service however, unless the engineer blew air in as he conducted a drop test.   If he did he has a rather unusual way of doing the test - but who knows!!

P.S. Thanks for the update.   Not everyone bothers, which is a bit inconsiderate when a number of people have tried to help.