STILL THE PRESSURE RISES

[damomor]

HAVE REPRESSURISED THE EX VESSEL AS INSTRUCTED BUT THE PRESSURE STILL RISES WHEN THE HEATING COMES ON.IT'S NOT THE FILLING LOOP AS IT'S NOT RISISNG WHEN THE HEATING IS NOT ON OR ONLY TH HW IS ON.

DAMO.

 

[HarrogateGas]

It will rise a bit, even up to a bar more when the heating on.....how much is it rising and What boiler is it?

 

[HarrogateGas]

Ive seen your prev post now...........you are likely to have a blocked expasnion vessel connection...........its very common on the puma due to poor design. undo the connection on the braided hose just behind the pressure relief valve . Stick a screwdriver down dowards the bend in the hose and i bet you hit a blockage. Usualyl a poke around will clear it.

 

[damomor]

YOU CRACKED IT.
THANKS A LOT HARROGATE. I OWE YOU A BEER!!! I'VE SO MANY DIFFERRENT DIAGNOSIS FOR THIS BLOODY THING AND ALL HAVE BEEN WRONG TILL NOW!!!!