Problem with my Vaillant Boiler

Virdi · 26 Oct 2015 at 13:18

Hi guys,

Can I change this Heat Exchanger myself?

Do I just drain the boiler and then swap the part ...and then re-fill?

Thanks

Bickaxe · 26 Oct 2015 at 13:55

I'm pretty sure anything inside a boiler has to be certified, outside (pipes) you can do yourself unless things have changed in the last couple of years.

Whether you do it yourself or not in this case is up to you.

FlyingFish · 26 Oct 2015 at 20:58

Hmm I would probably say that if you need to ask then perhaps just get someone in to do it, only an hour call out & job done.

Mind me asking why you want it changing.

Mick

The_One · 26 Oct 2015 at 22:14

Change it yourself - yes if your handy with a few tools

Change it legally - no not unless your gas safe registered

Steampunk · 27 Oct 2015 at 00:32

Virdi said:
Hi guys,

Can I change this Heat Exchanger myself?

Do I just drain the boiler and then swap the part ...and then re-fill?

Thanks

If you need to ask, then no. You don't even know what things you don't know in order to do the job safely and check your work. If you get gas boilers wrong, you can blow up your house and that of your neighbours.

Virdi · 27 Oct 2015 at 06:05

Hi

I believe I might have a blockage and the boiler is shutting down.

Just want to know what's involved? Just unscrew it and does it pop off?

...as I can't see the pipes behind it etc....

Steampunk · 27 Oct 2015 at 09:22

Have you even checked the diagnostic codes the boiler gives you? You're just guessing what the problem is and you've decided to start dismantling the inside of your gas boiler? Seriously, don't do this.

The_One · 27 Oct 2015 at 13:11

Get someone in doubt DHW heat exchanger is blocked more likely cause is the rubber hoses are blocked/perished

You've also got a leak on the Auto air vent back of the pump