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I have taken the top off and the pin was fine, still not working. :cry:

We have got a Drayton trv 4. Will try it 2mrw.

Oh my, how do I take the top off of the trv? Is it guna leak water if i do? :oops:

Tried bleeding it, a bit of warm water came up, then just went cold. Could it need a new trv of should i try to clean the system? Please help :(