[paul ette]

Tried all different flow rates gas up, down etc, just stays on for a minute and turns off, any ideas?...?
It's a bester 8l

[Richard Shepherd]

It's probably knackered, sell it to me

[Dave Willis]

Maybe your pump can't keep up with the flow rate of the heater?



or......... don't suppose it's meant to run on natural gas?

[slap bash]

Try connecting it to a household tap and see if it helps.
 

[Dave Willis]

Need a four mile hose 

[paul ette]

I've turned the flow to the max, still does it,

[Dave Willis]

What gas should it run on? Check the handbook.

[slap bash]

Your boiler is made to work at 8 liters a min and your pump is only delivering 3/5 liters a min.So could be shutting off as it thinks its dry.Thats why I say fit a garden hose to the boiler inlet so you can see if this is the problem.If it does not respond the the boiler is faulty.If it works on a garden hose then it is the flow been to low.