Combi Overflow prpblem

[dcr2007]

My Glow worm combi boilers overflow pipe as started to run

What is the problem ??

How do I sort it

Thanks

Great web site forum

 

[gas4you]

If it is doing it whilst the pressure gauge is below 3Bar then probably a worn prv.

If pressure is above 3 then it is doing it's job and the fault/reason the pressure is going above 3 needs to be found asap.

 

[dcr2007]

Its over 3bar, any ideas

Thanks

 

[lagunaglen]

Expansion vessel fault probably.

 

[chrishutt]

Look in the FAQ Plumbing Tips topic for more on expansion vessel problems.

 

[bengasman]

try disconnecting the filiing loop. it should not be left on

 

[dcr2007]

Thanks for all the ideas

The fault turned out to be the that the top up tap (the one you open when the red light comes on) had not been closed completely

Once again thanks for the replies