Repressurising Greenstar 24i junior condensing combi boiler

Luckat · 20 Aug 2019

Hi,

Partner and I have just got back from holiday to find our hot water and heating isn't working on the Greenstar 24i junior combo boiler. Cannot contact our landlord today (need hot water to wash up and shower) we're pretty certain the problem is the pressure on the boiler as it's at low.

We watched the Worcester video on repressurising and the key is nowhere to be found and there are no holes to insert the key on the bottom of the boiler (please find pictures attached)

IMG_20190820_171055194

Luckat
20 Aug 2019

IMG_20190820_171110848

Luckat
20 Aug 2019

IMG_20190820_171111927

Luckat
20 Aug 2019

Leads me to believe there is another way to repressurise the boiler we just can't figure it out. Any help would be immensely appreciated!

Thank you!

Lucy

martyndc88 · 20 Aug 2019

You're looking for a braided silver hose connecting two pipes from the boiler together. They'll have valves on them

Luckat · 20 Aug 2019

Hi,No

Thanks but there isn't a silver braided pipe anywhere on the bottom of the boiler. We've only got copped pipes...could it be one of those?

IMG_20190820_171110848

Luckat
20 Aug 2019

martyndc88 · 20 Aug 2019

Take a picture of the pipes underneath the boiler

Luckat · 20 Aug 2019

Hi,

Is this clear enough?

Thanks

martyndc88 · 20 Aug 2019

No a front on view of the pipes. I don't want to see the underneath of the boiler

Luckat · 20 Aug 2019

Tap directly above the blue pipe does nothing except dribble water when opened, so is not the keyless repressurising lever.

martyndc88 · 20 Aug 2019

The two valves with the brass blank ends on need to be connected with a hose and then you can top the pressure up

dannymassive · 20 Aug 2019

Also, the brass cap on the pipe with the blue pipe connecting has a drip coming out of it - could be where your pressure has been going if that is a constant drip. Might be worth checking

mrStat · 20 Aug 2019

As @martyndc88 said, you need to join the two red circled pipes together with a filling loop (silver braided hose) to fill the boiler.

Hopefully the hose is tucked on top of the boiler or somewhere where you can get to it. You will need a spanner to undertake the job.

@dannymassive the one with the drip is their cold mains, won’t affect pressure loss on the heating side, however the OP may get a bit wet when that brass cap is removed.

dannymassive · 20 Aug 2019

mrStat said:
As @martyndc88 said, you need to join the two red circled pipes together with a filling loop (silver braided hose) to fill the boiler.

Hopefully the hose is tucked on top of the boiler or somewhere where you can get to it. You will need a spanner to undertake the job.

@dannymassive the one with the drip is their cold mains, won’t affect pressure loss on the heating side, however the OP may get a bit wet when that brass cap is removed.

@mrStat Well spotted, I don't know why I mentioned the pressure loss as it's bimmin' obvious that it's the cold feed!! #facepalm! Brass cap still looks like is dripping though?!

Luckat · 20 Aug 2019

Hi everyone,

Thank you so much for all your answers!

Couldn't find a pipe so went a bought one from screw fix - next question - which end goes on which pipe? One end of the hose has a black on/off tap and the other doesn't!

Thanks,

Lucy

dannymassive · 20 Aug 2019

Looks like there is an isolation valve on the far end pipe which will need opening with a flat head screw driver - once the filling loop pipe is connected. Then you can turn the black plastic tap until the pressure is at the correct level. Then turn off the tap, close the isolation valve and remove the filling loop.

Luckat · 20 Aug 2019

Hi everyone,

We managed to repressurise the boiler finally so thank you so much for all your help, definitely couldn't have done it without you!

Lucy

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Repressurising Greenstar 24i junior condensing combi boiler

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