greenstar 24i junior not working

[malek]

worcestor 24i greenstar junior combi.


Hi, My greenstar went on the blink just as I arrived home from holiday.
I Tested the expansion vessel only to find that it had failed (water coming out of the valve when depressed.) I replaced this by fitting an external 8 ltr expansion vessel from screwfix.
The boiler started straight away and we had hot water and heating for a while but then we had banging in the boiler and it cut out.
I tried to vent the boiler at the top of the heat exchanger but just steam came out.
there is also a leak on the top gasket on the heat ex and there was some steam coming from this.
Any ideas, its driving me nuts.
Thank you Malcolm.

 

[dancinplumba]

Hi and welcome, are you a registered gas installer ? If not you should call one in to have a look 🙂

 

[SafeGasInstall]

boiler is running dry , and I am sorry for the lost ..... you probably have done more damage then it had on the 1st place

 

[malek]

Just been round the house and bled again and fingers crossed its behaving itself thus far, thanks for your fast reply.

 

[SafeGasInstall]

DIY work could be dangerous not just to you and your family but to all neighbours in your street !!!

 

[Dotty]

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