External gas point- isolation valve. Stanton.

Cadac barbecue just delivered, flexi-pipe made up and connected, turn on... no gas coming out.

I've read through the A-S manual, which is generic in many parts, rather than specific to the Stanton, e.g. it shows four isolation valves rather than three, and at no point can I see it mentioned that the external gas supply is taken from the fridge gas supply! Of course my eye test is due later this week so it could be me.... but I would have thought that it would have deserved a mention somewhere in the gas section.

So, to use your external gas point- turn on the fridge isolation valve in the wardrobe.