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Hello,

I can smell gas in the locker when the valve from the calorlite bottle is opened (nothing when it is closed). My current setup looks like this.

IMG_4167.jpeg - Bild entfernt (keine Rechte)
IMG_4169.jpeg - Bild entfernt (keine Rechte)

I think I may need to replace the pigtial as the van is now 4.5 years old. I was thinking of a braided one with a hand wheel (to save using a spanner). Is this a suitable replacement and am I allowed to do the job myself or do I need a quailified gas engineer?

Werbung: https://www.ebay.co.uk/itm/5mt-OVERBRAID...&frcectupt=true

Also, I cannot remeber the length of hose required for a 2014 310. Does anyone know offhand (save me a trip to the storage depot)?

Thanks.

Hi Philip

I doubt the fault is with the pigtail as it is less than 5 years old - unless the sealing washer at the regulator end is damaged or missing.

It looks like you have a dual-diaphragm Truma/Gok bulkhead regulator, and if that's the case, the first-stage diaphragm has sprung a leak - a common fault with these regulators.

You'll need someone to confirm this, but in the meantime disconnect the pigtail at the cylinder.

Thanks John, I will disconnect and consult a specialist. Which bit is the first-stage diaphragm and what would need to be replaced?

The regulator's diaphragms are contained within the two disc-like housings. The first-stage high pressure diaphragm regulates down to less than 1 Bar, the second-stage provides regulation to 30 mBar.

On the side of each diaphragm housing you'll see a yellow plastic cap - these are pressure relief ports, and if a fault occurs within the regulator, gas is allowed to escape from either one or both ports.

This is where the gas you can smell is probably coming from.

The first stage diaphragm is either the one on the right or the one on the left - in other words, I haven't a clue as to which one's which.

If a faulty regulator is confirmed you will need a new one - but don't have another Truma fitted. Cavagna bulkhead regulators are much more reliable as they're a single-diaphragm unit.

And a third of the price.

Thanks for the advice John, much appreciated.