2 major questions, i have megaflo cylinder in a 4 bed house, the pump setting is on max should I reduce and what does this do. Secondly my pump doesnt turn off unless I use the fuse switch attached to the control unit. I have replaced valves but this has made no difference. Is it a problem with the pump or the motherboard in the boiler. Any help would be great. I have had a sparky check all the wiring to and from control and valves and boiler and they are all good.
Any help would be great!!!!!!!!!!!
Any help would be great!!!!!!!!!!!