Bobbin Type Flow switch: 10l/min 7211823 12l/min 7211822 40kW 16l/min 7211824 Turbine Type Flow switch 10l/min 7663535 12l/min 7663533 15l/min 7715773 New Brass Diverter Cartridge 7656807 Black & White Diverter motor 7216534

This video helped me to understand why my 10year old Potterton Gold HE was banging sometimes. It was when radiator valves closed at certain temperatures. Ordered the motor head using the correct part number but the non- spring loaded type was supplied-This was the source of the problem. Sorted now, thanks for the free advice.

Thanks again Roy and Allen, for making it as simple as black and white.

Fantastic Al & Roy, & thanks to viva for making this possible. You're both extremely knowledgable engineers 👍.

Roy you are a legend , a fountain of knowledge 👍

Another great video thanks Roy & Allen

Very well explained, you made it simple and easy to understand

Excellent as always

Brilliant classroom stuff .. Ive learned alot .. I am on my way to change a divertor and the motor this morning

Hi allen thanks for another super sunday video, hydro block on a baxi combi instant would be awesome Thankyou roy + viva

The worlds our Royster. 👍

🙏 thank you. Appreciate your work

Seriously very helpful video guys, can thank u guys enough for the high effort goes in these videos

Brilliant video thanks lads

Top video lads 👍

Cracking little Video 👌

Fantastic

Good video

Great Video, what is the part no of spigot for the pump and brass washer for thermistor Thanks alot

Legends

Hi Allen, thank you for this detailed video. Really helped me out! Many of these motors look fairly universal, not sure if you know but would this motor fit a Ariston HE series boiler? They all look extremely similar.

Roy/Allen could I just ask the effects on water flow rates. Lets say if I were to put a larger or smaller plate to plate on a boiler. How would the boiler behave? I've never tried it myself, I'm just curious that's all, thanks 😉.

Hi Allen when I write the part no to find flow switch turbine type can't find all bobbing type can you please put link for turbine type to buy one Thank you

Hi, i got an issue with no hot water, can i just remove the cartridge from the diverter clean it and the. Cross the finger?

Great one, would you please zoom in, to see the part clearly, appreciate your hard work. 🙏

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

Does the light flash red on the right side diverter valve when its not giving hot water??

My boiler is pressurising itselve,I have changed the pressure or expansion vessel and the divert or valve cartridge also cleaned and flushed out the plate exchanger ,the pressure vessel is pumped up to 1 bar with air but the pressure still rises to 3bar and continually releases to via the external pipe. I have also removed the filling loop on the boiler and capped off pleased help before I go mad what do you thing is causing my problem Terry

Roy, my 105 instant diverter valve is letting by in CH and pre heat mode, I overhauled the valve with a kit , but still lets by, any ideas pls, I descaled the Plate h/e and top up expansion vessel.

Again, great video Roy. I may have missed it, but let's say that the hall-effect sensor is faulty/blocked, what might the symptoms be? Would you suggest giving things like these a quick rinse on a service every couple of years?

Hi, after gas safety engineer left the water wasn’t heating he came back and fiddled with some pipes under the boiler and then we had hot water. This happened twice! This year the radiators don’t heat up! They were ok until April and the safety engineer came in August… now it turns in for around 10-15 seconds and the boiler flame light turns off! I wonder if this time he has stopped s valve or something connected to the radiators? I’m a little suspicious that he charges the landlord every time he visits our flat. Please help!

Hi Allen I got Baxi 28E it that mean if my boiler are on then I turn my hot tap on the diverter stop run hot to my radiator? I just noticed the light on the boiler turn over to the hot tap if I run the hot tap.or you should see both light on(hot tap and the radiator light on)? Thank

Can’t believe this video is only 11 months old- thought it must have been from years back with the way you’re describing people as blokes who can’t read instructions etc. I love your content and find it so helpful but the world is changing and it’d be good to see you be more mindful of all the women who work in this industry. And not all the men who do this job are just ‘blokes who don’t read instructions’! Come on Allen and Roy- you’re better than that!!

Halstead Eden CBX hydroblock

Can you do a Vaillant hydro block, well you did say anything. hahaha.

you forgot to give us the part numbers

Hart. Allen Hart. Licence to unchill.