Vaillant 242 leak

[kivelll]

Hi,

Just wondering if anybody here can help.
I have quite an old Vaillant combi boiler (it was old when I bought the house 6 years ago), but it has been quite reliable.

A couple of months ago though, I bled all the radiators in the house and then added pressure back into the boiler (around the 1 mark) as I do every 6-12 months.

Shortly afterwards, a slow drip of water started to fall out of the bottom.
The boiler still works fine, so I have not really worried about it.

However, the drip has got progressily faster, and is now getting quite annoying. The boiler still functions correctly though.

The water appears to be coming from a piece of metal that is joining all the pipes together.

When you look underneath, the cold water inlet leads into this piece, and then there are a few other pipes coming out of it going to various parts of the boiler.

My question is, does anybody know the name of this part - and is it something that could be replaced without the need of an engineer.

I don't mind paying for this to be fixed, but I begrudge making a call out just for somebody to tighten a few of the joints if that is all that is required.

Any help gratefully received.

 

[namsag]

The part is the water valve sometimes called the water section. It may just need a new stuffing box gland which is a seal on the top of it best to change diaphragm at same time as it will be worn. Entire valve is about £100 if it needs completley changing
..Valve is held in position by the 4 pipes attached to it and a little grub screw at the top which can be accessed by taking front panel off. Providing it has not been leaking long enough to corrode the grub screw it should only take 5 mins to take out .

 

[Gasman1015]

Water valve. Leaks normally from inside components not pipe seals.
Easy enough to change complete valve, if you know what you are doing.

 

[DP]

I would suggest service the water section. I have yet to replace this item on a VCW. Well made. Why replace when servicing the item will restore functionality.

 

[namsag]

DP its a diy site, and if the gland has been weeping for a considerable time there is a good chance some of the screws holding the 2 halves of the water section together will be corroded in place and not all diyers will have the confidence or kit to drill them out etc

 

[DP]

Namsag moment of mental aberation. I get exited when I see Vokeras and early Vaillants.

 

[ollski]

DP its a diy site, and if the gland has been weeping for a considerable time there is a good chance some of the screws holding the 2 halves of the water section together will be corroded in place and not all diyers will have the confidence or kit to drill them out etc

Agreed, virtually every time and thats if you can actually undo the grub screw holding the valve in.....leaving the leak going for any length of time will turn this nice simple job into a right p.i.t.a.