hi i  dont think i have a manual  but have the same unit here i find i get problems with radiators having a mind of there own,  and the switch below which is  the 3 amp  has now started blowing fuses any ideas on that ! this happens when i switch on the hot water.
main fuse box is fine. pump runs but feels weak, it used to be more lively.  and have bled it, boiler is a stelrad. had it serviced told it is fine.   
thanks
                
 roger
                
 June 2007