Recent content by Danny7777

Makes sense thanks for your help Dan

Hi the link goes from the live connection terminal to the rt terminal right next to it. Why is this link there what does it do? If I remove and follow your diagram it should work.

It's not shown in your diagrams and I was asking do I remove it boiler end? It just looks odd a link across from one terminal of 3 to another terminal of a pair. The link on the sender unit explains to be removed if volt free or left in for 240v. I know some vaillant pcbs can differ between...

Hi it's a link that's in the boiler connections from the live 240v to a terminal right next to it, it reads below the actual pair -230v? Thanks Dan

Hi D , In your diagram I noticed the link from the 240v to one connection of rt has been removed in guessing this is the case as the link is left in the thermostat end? Thanks Dan

Thank you very much for your help and merry Christmas. Dan

Hi it's a hrfs1 wireless thermostat thanks Dan

Hi I'm looking for wiring diagrams in the manual for this boiler but none available. I'm trying to wire up a Horstmann wireless thermostat to a valiant Eco plus 837. Which terminals do I use as ther is 3 diagrams on this particulater thermostat? On the boiler wiring it dosnt correspond to...