Recent content by rockyrockstar

Fixed it!!! the little tank was full , took pump apart and emptied it and the noise stopped!! Yea at last :)

Yes it does :)

help please i have a combination boiler with a grundfoss pump, the pump sits on the floor below the boiler and has a grey cover on it, the problem is that it is making a very loud constant whistling noise, i have read that you can bleed the pump but mine has a cover on and I cant seem to see...