boiler losing pressure

[tenheads74]

I have a baxi 105e thats losing pressure rapid this started a few weeks ago when i was taking a rad off to decorate, i was advised to flick the prv and this worked for about a week then all of a sudden the pump started screaming its t**s off again so i tried to fill it up and it sounds like its coming straight back out via the plastic pipe going to outside (overflow i presume) does anybody know what its likely to be, and could i repair it myself if not how much am i looking at, by the way fantastic forum .

 

[buffy27]

whats the craic
sounds like u have shifted some sludge in system,causing a blockage of sorts. this is causing the over pump .common problem when lads take out rads like u have done. it is generally sludge or air locks. flush system and re balance rads .best of luck

 

[tenheads74]

cheers buffy 27 i will give it a go whats the best method of doing this in your opinion???

 

[Deleted member 261]

heat exchanger blocked with crud call a pro