A detailed look at diverter valves in a boiler - Part 1

Baxi trainer Richard shows you the 'ins and outs' of a boiler diverter valve - a detailed look at how a diverter valve works in a boiler.

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[TobyWanKenobi-]

Thank you for making this video, I bought a replacement valve and when I removed the old one in six pieces I thought I would have to go all the way back to the plumbers merchant to get a different valve. My wife said look at YouTube so this video saved my day.

[lettoservicedaccommodation]

One of the best videos I’ve seen to help with training, the cut always are a fantastic way to learn, more of them please

[douglaughton]

I watched this to familiarise myself with how the bi-pass operates. Great video. Thanks 👍

[Hambini]

That was an excellent tutorial. The strength of your training videos has made me fit baxi 800s now!

[stevekelly]

I'm a different type of engineer but own one of these.
Brilliant description of how it works. You kept is simple, to the point, and explained the operation.
Not sure about o-rings being rotated many times as they seat though.

[pointyplumber]

As usual Baxi seeing a possible Problem and evolving to deal with it. Brass parts comon sense unlike some bignanes still using plastic. . Great video what a way to get back in to it.

[smellslikethinice]

Great vid, you guys (Baxi) go the extra mile, Thanks

[eazyrat]

awesome way to show how it works...in 5 minutes too. thanks

[al-azimahmed]

This is an excellent video, I think a customers boiler has a diverter valve issue for hot water not working, rather then a block heat exchanger

[scottiedog]

Baxi are mega good ! Installed loads and I’ve got one

[fly-high-me]

Thanks! Exactly what i'm looking for

[IJHougfhton]

Hav you upgraded the seals on the top as I have changed loads that leak into the electric motor shorting out the boiler blowing the fuse

[hamzaparvais]

Fantastic video like the way u teach thanks

[antonybuckley]

Great video Richard. Any chance of videoon removing insulation panel on the solo heat only

[daddybassi]

It's a great vid.

The cartridge isn't suited for the boiler that have a bypass. I'm afraid you would need to fit the complete diverter valve.

[doma]

My valve cartridge is not sized but my replacement diverter valve has failed within a month. Is something else faulty I'm missing or have I been stung by poor quality spares?

[mikepeck]

it would appear my diverter valve is whining when on heat and you can hear it slowly close as it switched to DHW, i can replace the whole assembly it seems but could not find the cartridge itself. Do you know where i could just get the cartridge for a Laars Mascot HT 330? looks identical to the valves in this video

[baffoxxx]

Hello, my question is the following:
When the boiler is off, where is the three-way valve positioned towards the heating systems or the sanitary water?
Thanks

[darrenwilliamson]

how do you get valve out if it snaps old plastic one

[NIIS]

I have a horrendous whistle from my boiler and it seems if I flex the diverter valve head the whistle stops. It got so bad I wedged a bit of wood in there but then the whistling started again…always seemed to be within the first few minutes of the heating coming on. Replaced the head but hasn’t solved the issue. Could this be cartridge related? Or something completely different.