Drayton TRV4

Discussion in 'Plumbers' Talk' started by bigjules, Jan 7, 2008.

  1. bigjules

    bigjules New Member

    Here's the situation....

    Radiator in new shower room is fitted with a Drayton TRV4 which doesn't appear to work - the rad is always boiling hot despite the setting of the TRV.

    The pin isn't stuck and its the same when substituting a TRV head (that works) from another room.

    The non-working head from the shower room works on other rads.

    I'm perplexed..........
  2. Walterfilter

    Walterfilter New Member

    what you clearly have is a trv head that works but a valve thats knackered..........

    change the complete trv......
  3. v12man

    v12man New Member

    Take the trv head off, push the pin down and see if the flow to the rad stops, if it does then valve is fine, if not, valve is dead as Leaky says!

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