Recent content by nickbux

Thanks Sam. I've already tried this without success. What ever is causing this is resonating throughout the boiler burner and there's no discernable difference no matter where you place the screwdriver. I think I will (reluctantly!) call out an engineer tomorrow. Thanks

My Worcester Danesmoor 15/19 oil boiler, approx 15 years old, has started to make a high frequency knocking sound which I've traced to the motor or oil pump. Both seem to rotate freely and smoothly enough and the motor and fan spin quietly when removed from the burner. Is there anything else I...