hot water problem with Greenstar 24i junior combi boiler

Dannyboy1977 · 27 Jul 2009

Afternoon all,
I've recently been having problems with my hot water. When showering the hot water seems to come in fits n starts going form normal (hot) shower temp to freezing cold. Jumping in and out of the way of the stream of water several times every morning is proving to be a tad tiresome and I wondered if anyone could help. The (bar)gauge on the boiler is as low as it can go and no combination of tap turning seems to help. There are two black taps directly below the boiler and one metal tap below those.
Any help much appreciated
Thanks
Dannyboy

bengasman · 27 Jul 2009

For starters, it could probably do with a service. Unless you are doing something wrong, it also sounds like the filling loop has perished.
You really shouldn't use the boiler if the pressure is below 0.5 as a minimum.

Dannyboy1977 · 27 Jul 2009

Good man, thanks for that. I'll get someone in asap

bengasman · 27 Jul 2009

If you can post a picture of the filling loop, we might even solve at least part of the problem this way.

fitz1 · 27 Jul 2009

get the min gas pressure on the boiler tested.

Agile · 27 Jul 2009

If the pressure was adequate then thats the classic symptom of a blocked plate heat exchanger. ( Your boiler may not have one! )

But the first thing is to increase the pressure to the normal 1.5 bar.

You should move both black taps until they are in line with the pipe and that should be to open position and allow water to enter.

Hopefully it may only be the pressure which is a simple problem but there may be other problems to find after that has been corrected.

Tony

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hot water problem with Greenstar 24i junior combi boiler

Dannyboy1977

bengasman

Dannyboy1977

bengasman

fitz1

Agile

DIYnot Local

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