its an myson boiler when its swicth on only the pump and fan goes on there is no problem on pcb i check those gas volbs its not make any sound,ill be apriceate if any body guide me what should i chack after
hi there
its a biasi garda 24 combi water pressure is 1.5 ,hot water running fine but when i put the heating on its not gonna work (this is a new boiler) if any body know what the problem is