Advice Please:
A large firm of plumbers visited, and told me that wandering/failing boiler temperature problems, and occasional pressure dropping, were caused by a failed pump. We still have some heating in the house, but temp drops back after each firing.
They discover that my Grundfos VP6 ZE Class H (IP 42, JF95, 6-bar) pump is obsolete, and because they can't find a replacement to fit the gap, want to sell me a new boiler. The Vaillant dates from 1996. "73.77418" ? There must be a cheaper solution!
I wondered about moving the pump outside the boiler on a spur of tubing. It would seem to be a practical and simple solution, to use a different pump, so long as it has electrical insulation.
I have found the same model pump though on Ebay in Germany etc, but that is "Class F", not "H". No idea what that means: it seems to have a flange that turns on the right lower corner, not a straight black box.
Does anyone know how to obtain any replacement please? Urgent responses gratefully received. (You will gather I am not a plumber!)
Many thanks.
A large firm of plumbers visited, and told me that wandering/failing boiler temperature problems, and occasional pressure dropping, were caused by a failed pump. We still have some heating in the house, but temp drops back after each firing.
They discover that my Grundfos VP6 ZE Class H (IP 42, JF95, 6-bar) pump is obsolete, and because they can't find a replacement to fit the gap, want to sell me a new boiler. The Vaillant dates from 1996. "73.77418" ? There must be a cheaper solution!
I wondered about moving the pump outside the boiler on a spur of tubing. It would seem to be a practical and simple solution, to use a different pump, so long as it has electrical insulation.
I have found the same model pump though on Ebay in Germany etc, but that is "Class F", not "H". No idea what that means: it seems to have a flange that turns on the right lower corner, not a straight black box.
Does anyone know how to obtain any replacement please? Urgent responses gratefully received. (You will gather I am not a plumber!)
Many thanks.