tonite there has been a humming/vibrating noise coming from the storage tank and when i checked the boiler there is no pilot light and no other lights lit up either so doesnt appear to be overheating or anything just dead. Have tried switching it off to 0, leaving it for 5 seconds as its says on flap then turning it back on and still no pilot light coming back on. The system is 12 yrs old and has been running fine till now, any suggestion please?
