Glowworm 30 cxi

[stani]

Went yo this on Friday, water pouring out of prv, filling loop left connected and valve internals were letting by, disconnected the loop capped the valve, reduced pressure to 1.5 bar, arranged to go this week with new valves, got call later pressure back up to 3 bar, was thinking dhw hex and heating hex somehow passing to each other, anybody any other ideas how pressure is going up with no fill loop attached?

 

[buckley plumb]

when you said cap valve which valve are you on about I am assuming the filling loop. on the cxi with the filling loop under the boiler on the valves they can pass customer may have reconnected .this type

 

[stani]

No mate it's the old braided fill loop, non return (without isolating lever) and lever 1/4 turn valve. Separate from the boiler, teed into the return.

yes it was the 1/4 turn valve I capped

 

[jtsplumbing]

Pin hole in Plate heat ex, had a couple of these on glow worms.

 

[stani]

That's what I was thinking, wasn't sure wether it was a problem with these

 

[buckley plumb]

check expansion vessel charge and the flexi from the vessel to the hydro block these can block and stop any expansion other than that plate

 

[stani]

Boilers not been running since I disconnected the fill loop

 

[buckley plumb]

Boilers not been running since I disconnected the fill loop

plate then mate.this is the last cxi plate I took off

 

[lame plumber]

dont get this problem with an intergas combi

 

[northcarr]

Best thing new boiler IMHO they are pants PCBs tend to be a problem and blumin expensive.

 

[stani]

New boiler going in would like Intergas but will probably end up cheapest bargain basement