i have a keston 130 condensing boiler. it has started playing up. the
heating is not working and the bolier keeps cutting out. i have called
Keston who have suggested it could be that the strainer needs cleaning.
this entails shutting the valves either sde of it. taking it off and
cleaning it out. problem is although i can isolate this i cannot get
the nuts to undo. the nuts are huge and i do not have an adjustable
spanner big enough so i am using a set of pump pliers. however i dont
really like doing this as it tends to mash the nuts. does any one have
any suggestions.