worcester bosch greenstar 24i junior pressure problem

[geetee50]

I have a problem with the water pressure, it keeps rising to 3 bar over the course of 4-5 days,the filling loop is a worcester bosch part and is closed with the key removed,the system was flushed when fitted so should be clear of crud,the whole installation is just over a year,any ideas please.

 

[simond]

The water pressure in the heating - is it related to the heating being on? I guess in this weather you have not used the CH?

Therefore the rise in water pressure is most likely a cross contamination leak in the boiler..... which should be under warranty if it was fitted professionally.

 

[geetee50]

thanks for that i'll look into warranty,if not any idea what part may require cleaning if i have to find a approved plummer,it takes around two days to reach 3 bar heating on or off

 

[Kingsway]

Does the pressure rise when system is hot or cold. if when hot then expansion vessel fault. if when cold filling loop leaking by

 

[Gas2Air]

Does the pressure rise when system is hot or cold. if when hot then expansion vessel fault. if when cold filling loop leaking by

Hasn't got a loop.