Potterton Apollo boiler, 3 port motorised valve (H.W-C.H), cylinder stat and room stat. Heating comes on O.K. from timer,and shuts down when required. However if we require more heating and manually switch on the heating, the boiler ignites, starts banging and shuts down continuously. I have traced this to the pump not receiving any power, consequently the boiler overheats and boils through the vent pipe causing the banging.
Inside the satchwell control/circuit box I found a conection which became live when the CH and or HW is switched on, and have wired the pump to this. This seems to work ok.
Anyone see any problems, or is there a simpler solution
Inside the satchwell control/circuit box I found a conection which became live when the CH and or HW is switched on, and have wired the pump to this. This seems to work ok.
Anyone see any problems, or is there a simpler solution