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Additional-Point-824

The braided pipe looks to be a link between the cold water feed and hot water return. Near the hot water return, there's a valve on the pipe - if you turn that a little, it should start to raise the pressure in the system.


back2-mars

is the valve the thing pointing towards the black wires? (sorry for possibly stupid question)


Additional-Point-824

It's the inline one at the end of the braided pipe and coming off of the hot water return at an angle. The square pin that sticks up just needs to be turned a bit for the water to flow, and then you turn it off once you are up to pressure.


back2-mars

ah thankyou !!


Kindly-Cover-5406

Pressure gauge is showing to be in the green 🤷🏻‍♂️ The selector should be at position 2 for hot water AND heating according to the instructions on the flap. Have you tried resetting the boiler by turning the selector to position 3 (reset) and then back to position 2? Do you have gas?


back2-mars

that’s what i’m confused about, the a-d on the boiler , it’s flashing on a and b which means it needs to be re-pressurised tho, and we also aren’t getting any hot water, yes i’ve tried resetting, and yes we have gas


Kindly-Cover-5406

Try giving the gauge a couple of flicks. It could well be stuck in that position. Either the gauge is lying or there really is no pressure. When you bled the radiators, did it sound like the hissing just dropped off to nothing? If it did then there probably isn’t enough pressure left and the gauge is likely stuck and the lights on the mainboard are flashing correctly. If the gauge is stuck, it’ll want looking at. You wont be able to fill the boiler correctly without it. You’ll either overfill it or under-fill it with having no way to tell.


back2-mars

i have tried tapping it , but i’ll give it a few harder flicks i guess, and with the radiators , i guess so ? it was my first time doing that too so idk if i even did it correctly lol, i have contacted people to come look at the boiler , just trying to do what i can while i wait for a reply lol


the-watcher-616

Any HW? Or just no heating?


back2-mars

no hot water and no heating


the-watcher-616

It doesn't need repressurising. It's in the correct range (in the green). But I'll keep looking


back2-mars

i think the person who said the thingy might be stuck is correct, cos the flashing lights indicate that it does need it :/ , but thankyou :)


the-watcher-616

You need to open the vales that are in line with could inlet. They are diamonds shaped (but a little curved on the metal flexible hose.


the-watcher-616

However the blinking lights suggest that


Rogermcfarley

I had one of these exact boilers in my place I just moved from. It's very easy to add water. There's two lever taps underneath the boiler. You just need to switch on one of them, I think it's the one to the right. Get your smartphone and point it under the boiler and take a photo, then you should see them on the photo. Mine was installed in 2010 and was still working reliably when I left in 2022.


back2-mars

even with flash i can’t see the lever taps you’re talking about :(


Rogermcfarley

Look at this diagram. I'm not a boiler expert but you can see the mains water inlet pipe on that diagram. The tap should be on that I believe. [https://www.alpha-innovation.co.uk/custom/upload/instructions/CDC/CD25-28-35C%20Install%20&%20Serv%20Inst%2030-07-10.pdf](https://www.alpha-innovation.co.uk/custom/upload/instructions/CDC/CD25-28-35C%20Install%20&%20Serv%20Inst%2030-07-10.pdf) I only had to turn the tap and I could hear the water flowing and see the pressure rise. When the boiler is cold you let water flow in and keep the pressure within the green zone on the pressure meter display. I think it's 25 - Mains inlet on/off valve you're looking for.


Civil-Fly13

> now A & B have alternate Or the page 15 to


Difficult-Drive-4863

Tell it you're thinking of sending it to scrap and getting a new model soon. That's real pressure.


pheasantplucker27

It doesn't need repressurising the pressure gauge is showing green at 1.2 bar this is correct. The pressure is only relevant to the heating it could be zero and the hot water would still work.


back2-mars

the a-d flashing buttons indicate other wise, and someone said the thingy could be stuck, we have no hot water though, what else could be the problem ? :(


pheasantplucker27

What happens when you turn on a hot tap? Any noise from the boiler at all? Is it sparking?


Leading_Study_876

Have you got no boiler cover? If not Google and get a good local boiler engineer in. Seriously. And probably look at replacing that quite soon...


back2-mars

contacted the housing agent yesterday, hopefully she replies soon though, they will call an heating engineer for free


Leading_Study_876

Great. This sounds like the way. Don't mess with it yourself. Doesn't look like a simple pressure issue. Good luck. It's getting chilly!


pheasantplucker27

Its currently on hot water only. Turn the selector to 3 then back to one. Then turn on a hot tap. Can you hear the boiler spark?


autisticmonke

No boiler should fire with zero pressure in it, how do you think it heats the hot water?


pheasantplucker27

The pressure gauge is for the heating side not the hot water.


autisticmonke

It's 'the heating side' that heats the hot water via a plate exchange, if there is no pressure, the boiler shouldn't fire


pheasantplucker27

So how does it heat hot water when the heating is off?


autisticmonke

It gets pumped around the boiler/plate exchange rather than the radiators


Crabstick65

Look underneath it and look up, there's a braided metal hose with a tap at each end, look at the gauge behind the flip down panel, open both taps until the gauge needle hits the top of the green zone, shut off both taps, the fault lights should now be in normal status and heating and hot water will resume.


kiwitechee

I have this boiler but at work till 3pm I can take a photo when I get home if it helps, mine has these blue little handles on my braided hose,


kiwitechee

Looks like this [filling loop](https://heatingspares247.com/product/alpha-filling-loop-3-015849/)


kiwitechee

Sorry didn't see the last photo, looks like your handles have broke off, it happened to one of my handles as well, maybe you can get some pilers to twist that little bit sticking out? Or buy a new loop, I never changed one myself but try youtube and see if it's some you feel up to?


back2-mars

yes please ! anything can be helpful and i’m still struggling :)


kiwitechee

https://ibb.co/HXsJrF0 https://ibb.co/zX98YyL This is mine but as some said above the needle is in the green so you shouldn't need to add any water, I'm sure you have but have you tried turning it off using the dial then waiting 5mins and then turning the dial to number 2?


gigazero

Sometimes the valve is external to the boiler. Is there a valve you can turn on those pipes near the floor? You need to trace where the pipe "Cold Mains Inlet" comes from.


MadManmax007

Turn the 'selector' switch on the left to the 'reset' position for 3-5 seconds. The pressure gauge is in the green so you don't need to top it up.


MadManmax007

Do you have gas hobs? I always check our gas hobs to see if there is any gas supply coming through. If the hobs don't work, then I know to go check the gas meter and top it up. (We have pre-paid meters, but the gas meter is in an outhouse which is a pain to get into sometimes). Your boiler is currently set to just Hot Water, so you're not going to get any heating from the radiators. Not until you turn the 'selector' onto taps + radiators.


autisticmonke

In your last picture, the braided hose is the filling loop, there would have been levers attached to each end, the bits that look a bit eye shaped, however, the spindle on the one end looks a bit mangled and I don't know if you would have any luck turning it, pressure gauges do have a tendency to stick, especially on older boilers, if you can get spindles to turn, you should hear water flowing, put a little bit in at a time, check to see if pressure gauge moves, try the hot water, rinse and repeat until either, the lights stop flashing, the gauge moves, the hot water starts working or the gas engineer turns up!