When the bathroom basin hot water tap is turned on about a quarter and the combi kicks in and starts to heat the water a slight screeching noise is made. When tap is turned on more this noise will disappear. The taps are about 8 years old and I undertand that I live in a hard water area. The combi is about 5 years old.
Any help would be greatly appreciated.
Graham Turner[/b]
Any help would be greatly appreciated.
Graham Turner[/b]