greenstar boiler

Hi All, I have been in my home for around a year now, and when we originally moved in there was a worchester bosch greenstar Ri boiler. In my bedroom cupboard the boiler is positioned, along with a large hot water tank below it and then above in the loft an expansion and cold water tank...

Hello I have a Greenstar 25Si Compact NG Condensing Boiler. Fairly regularly I have to top it up with water to keep the water pressure at a certain level. This morning I noticed the little lever at the bottom of the boiler was a lot stiffer (i suspect after my last boiler service he scrwed...