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Mend Danfoss Radiator Radiators Started

tapping sound from radiator valves?

i changed two radiators and fitted both with danfoss valves after a while the radiators started to make a tapping sound are they fitted correctly?

A BRYANS
February 2009

Danfoss D.I.Y, Plumbing Radiator Radiators Started

you have got the flow and return wrong way round
there is a arrow on the trv this should be in the direction of the flow
if this is fitted wrong when it heats up it will make a knocking noice.

john
May 2009

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Danfoss Radiator Valves Tapping - Fixes & Advice