Water Hammer following Combi boiler installation

[Don Blowere]

Worcester Bosch Greenstar i combi installed. Since installation water hammer happens when hot taps are turned off, but only when the heating is on. Have you experienced the sam?

 

[ShaunCorbs]

Do you have a shock arrestor fitted ?

 

[Donald Blower]

Yes.. fitted twelve months ago.

 

[ShaunCorbs]

It might be not set correctly as it’s just an expansion vessel

 

[Allgoode]

I use the Pegler Yorkshire spring shock arrestor type, no prob's with them and don't have to worry about pressure checks