These 3 part videos are classic, with no gimmicks, just a man trying to fix his boiler without paying over the odds to fix it. Just what I needed.

Mark ...you are a legend. Had the same symptoms this week and had a replacement part delivered today and fitting was easier. Heating/ Hot water now both working great. A million thanks!!

Mark, thank you for doing this video series. Has helped educate me on the parts and components to my boiler and the understanding of what each bit does. It has also assisted me on dealing with an issue I have had with my boiler (same make and model). Don’t listen to the people who have told you off regarding these videos. People need to understand that some people actually like to learn about equipment, and you have actually not just opened the boiler & started taking items apart, you have in fact read the manual and done research regarding parts & fitting etc Anyway from me to you, thank you so much!!

Having had "experts" telling me I need a power flush at 700 pounds I am pleased to see your video and it gives me a bit more confidence to sort it out myself thanks!

Hi Mark great video. My sister's boiler had exactly the same problem. I fixed it temporarily by bending the spring round, while a new one is on its way! I salute you sir. We need videos from diyers like yourself to help the rest of us who give things a go too.

Hi Mark, I'm the same as you, a keen DIYer and am having this exact problem. I've been through the steps in your video and am now looking to replace the motor. Thank you for posting this, I'm sure it will help many people and it'll save time and money. Well done.

Hey Mark, followed your three part video and fixed my boiler. Thanks for posting the videos you saved me a few bob and I learnt something along the way. Keep it up

Hi,Mark I had the same problem and after watching your video I went and bought a new motor £12.80 and happy days every thing is working fine. keep up the good work...

Great video very helpful... i think I have the same issue that you had.. and watching your video has narrowed down my fault finding.. keep them coming mate

Spot on Mark. I wanna see more DIY as your a gem to watch and listen to. Stay safe.

You ve done a grand job, really appreciated as i found it very informative and helpful.

Weldone.... I salute you for ur courage and hard trying. Five star 😘 it was diverter valve motor problem. Which diverts hot water to heating 🖒

You are Brilliant Mark. Don't listen to these negative people. By watching this I didn't have a go at fixing by boiler but at least I know I won't get ripped off by the engineer with some jargon. Good on you Mark. Keep making the videos.

Well done! Your Mrs is a lucky lady :). Even if you had not got it working I think you are a hero for being brave enough to try! Back to my boiler...its playing up but sadly have to call someone. Have no such skills.

Thankyou for this video you have saved me a tidy sum and I managed to fix it myself. Well pleased.

Well done Mark,proof you don't need to spend four years in college to fix a boiler or try and get knowledge from others who don't want to give it.

Good man . Dont let any one discorouge you your helping people and saving them money ...thumbs up from me.

You are the best mate!! God bless you! I had the same issue and I just had to repair/fix the spring inside I that motor and now it’s working! Thank you!!🙏🏻👍🏻

Absolutely brilliant, people like u who uploaded videos like this save people being lied and ripped off by plumber's.

Good on you mate. I have same boiler and learned a bit watching this. As long as I don't touch the gas seals, pipes and gaskets I can do most jobs or preventative maintenance tasks.. it's good to know you have some new sensors and a stepper motor for the diverter valve that shouldn't give you bother for a while.... Some of the so called plumbers can try take a liberty.. the last one I had out bullshitted me just to get out the door .. he turned down the mains stopcock to slow flowrate through the heat exchanger to allow me to pour a hot bath.. was just masking the real problem and gave me more grief as the said stopcock feeds me and my neighbour if I ran a bath ( or any tap) all other taps in mine and neighbours were reduced to a dribble ,and vise versa, what a saga 4 visits later. So sometimes your Gonny have to give it a go fitting some suspect parts at cost price as long as your competent enough . Power to you

great video mate.. I have exactly the same boiler and the same problem.. thanks for the useful information 👍

Yeh, the brass divertor gets a slow weep from the actuator pushrod area. Which overtime finds it's way into divertot actuator & rot's it to pieces. So changing the broken actuator fixes the fault, but to sort the heart of the problem, the divertor gubbin's themselves need a overhaul. Good work.

Brilliant post mate well done .and thanks for the tip

Thanks for the vids mate. Ignore the evil trolls. Great vids.. i read the manuals myself but its nice to see a vid of it being changed (I think mine wants a new CH thermister - anyway, dont let anyone discourage you from trying.

Very useful . Keep doing what you doing :) ! Thanks for video

Good on ya mark, im exactly same as you, if somethings broke i will fix it, bollox to paying someone else to do same thing i can do myself. 👍

Well done you Think this helps big time Thanks for a bit of knowledge

I like it mate thank you leared a lot

Nice video well explained, thank you for the education !!!

Thank you Very informative

Thank you looks a easy fix

Well done its good your having a go. Its all common sense approach

i have this boiler all is working but hot water going hot then cold this morning any ideas

Brilliant well done pal

I've currently kind of got the same problem.... but with my hot water?.... taps run hot. Boiler temp goes upto 90 very quick then flame goes out. So it goes hot, cold, hot, cold from the sink taps

Hi mark I’ve got the same boiler. There’s no filling loop to re pressurise. I can’t afford to get a plumber out..any ideas?

Rusty as the gland on the DV is leaking ? New cartridges are available and easier to fit instead of the whole valve

great job thank you so much

Good on ya mate 👏

Nice one mate.

I try it . I check that motor and i notice i have no spring in it. I think its an issue

For the initial d.v motor head securing clip to be corroded like that, the d.v cartridge (spring loaded spindle inside brass body) must of been letting by at some point. Keep an eye on the boiler, if you develop a drip on the left hand side, it is more than likely that diverter valve cartridge. Also, be careful it doesn't leak through into the head and short the pcb (240v supply to that d.v head) - fingers crossed it will all be okay though :)

Nice vid. Ignore the haters. The plumber was probley so thick hes mum had been telling him how special he was for years only too find out he's not 😂

I suppose you recommend to the public to change the gas valve if that's faulty and carry out a combustion test?

Good for you, sod the "Gas Safe" RIP-off merchants.

Excellent

excellent now i got more idea of whats going on similar problem hot water no heating but mine doesnt fire up in heating mode so not the same were yours fired up and temp rised quickly mine doesnt even try to ignite just dead so stumped guess its time to get someone out but will keep eye open and see what was the problem with mine was thanks anyway still good video would helped many with the same problem

Same problem here Mark. Have E168 error. Can have hot water. Heating does come on but shuts down after a few minutes back. Into error. Can't afford to pay a couple of. Hundred pounds to have a £5 item replaced. Thanks Mark learned a bucket load from you. 👍 👍 👍 👍

Thanks f tips i have some problem w boiler .

Had a plumber out yesterday to deal with a leak in our boiler (same model), says it's the diverter valve, except he never looked at the swimming pool of orange water in the chamber above. Just because they call themselves plumbers doesn't mean they're actually competent and worth the money...

Good man

Nice job . I will try same work on my boileė

Well done mark great videos ''good luck to you ''its common sense not to play with,, electrics and gas,and just dive in 'but as you know a bit ,and can't afford £400 well done ''good luck to you,

I’m a gas engineer and 👏👏👏

thanks buddy.

Good job mate....i need help..you no them black plastic turners and i have a blue one. Which started leaking when i put boiler on .sorry i don't no how 2 take a pic never posted video b4 mite try it

Hi mark i have error code e160 any ideas who it can be ? Hot water works only after reset only . Bu no heating

I have the very same problem , same boiler, gas safe guy replaced the diverter acctuator motor, didnt work , changed pcb , didnt work , changed sensor ( NTC) DHW, DIDNT work , very frustrating , new boiler maybe

Taken from Gas Safe website just saying :P What gas work can I do myself? The definition of gas ‘work’ is quite wide ranging but you can perform the tasks set out in the user’s instructions, (provided by the appliance manufacturer) that are intended for the user to carry out. This would not be a breach of the law. The law allows you to replace or adjust any component or control that is designed to be operated, or replaced by the gas consumer e.g. a cooker tap control knob. However you should not do anything that involves disturbing the gas carrying components (such as the gas supply pipe) or that could affect the combustion process (such as removing the combustion case of an appliance What gas work can be undertaken by other tradespersons? If the work required only involves the replacement of a non gas component such as a water circulating pump or central heating control valve, housed within the boiler’s decorative casing, the work could be undertaken by another competent tradesperson e.g. plumber/electrician. Providing the work could be undertaken without having to break a combustion chamber seal

Well done plumbers are 🔫💰💰💰💰

My Potterton Gold combi has the same diverter valve assembly. Although it is barely six years old the cartridge and actuator have had to be replaced every 12-15 months because water leaks from the top of the cartridge into the actuator and destroys it. After being charged £240 each time by plumbers, I bought both parts on E-bay for £29 total and did the job myself-it's not difficult. I have now done it three times-at first try it took me an hour and a half, but now I have whittled it down to twenty--five minutes. I estimate I have saved in excess of £700. Incidently-how come the plumbers were charging me fifty pounds for both the cartridge and the actuator? I keep an eye on it now so that I can replace the leaking cartridge before it leaks into the actuator, so the change I did last week cost me only £13!

Hi, I can't pulled out my cable, but I seen him when he pulled it's come really easy out, any help?

Top work, sir. I can now fix my neighbour's boiler for her. Ignore the idiots who tell you you need a plumber - they're people who can't think for themselves.

A couple of points: any decent engineer should have diagnosed your fault in 15 mins, you technically can not repair a gas appliance unless your are GasSafe registered.

I'm having the same problem, however ive noticed that your pressure gauge didn't rise although the temperature raised. my symptoms are the same but also include raised pressure into the red. I wonder if its the same part causing the problem. I got raped by a heating engineer the other day, came out, didn't even take the cover off, charged me £65 call out and buggered off. Time to find the solution myself. Or maybe employ a Doctor or a Lawyer because their hourly rate is much less.

Copy and Past... Thank you

400 pounds? you talk so much nonsense, maximum I would charge for this would be more like 100.

3rd time lucky 😂 Well done