Eco tec pro

[Barry98]

One for the vaillant peeps , this part here has a hole ontop that you can see inside and its full of water leaking , is there a service kit available for it am guessing ?

 

[bewsh]

Nope, I've never had to move the pump. They are easy to replace.

 

[Ermintrude]

No just undo screws pull out that circlip and bobs ur uncle

 

[Leo21]

I'm not getting this tbh, the diverter locates in to the pump. When I tried to fit the diverter, pushing it home to the right on to the pump the rubber seals moved. And it's really tight on the dhw flow sensor.
im obviously missing something.

 

[Ermintrude]

Silicone grease by sounds of it

 

[Leo21]

I use the silicon grease to stick the seals on, but can't stop them falling of as I engage the pump.

 

[bewsh]

Are you putting the o-ring in the pump or on the diverter valve?

 

[Leo21]

Are you putting the o-ring in the pump or on the diverter valve?

On the diverter valve. If you lads are doing it without moving the pump, it obviously can be done. But I can't get the pump engaged without the back seals moving.

 

[bewsh]

It can take a few attempts, but once it's lined up, a good push will slot it in to position.

 

[Ollieg]

Undo the bottom left screw on the pump (not the head). This allows you to twist the pump head away from the upstand. You can then insert the diverter with about 10mm clearence on the 2 seals. You then push the whole lot back.
If the boiler still has the rubber hoses you get quite a bit of movement on the pump this way.

 

[bewsh]

I've never had to do that, but I'll keep that tip for if I'm ever struggling to fit it back in properly!

 

[Ollieg]

You don't have to do it but it does make it easier. Give it a go.;-)

 

[stevetheplumber]

theres two screws up through the bottom of the boiler that hold the pump in place if you take them out it makes changing the divertor easier half hour tops once its drained