Alpha boiler - no hot water... any advise?

[Sally Rushton]

I arrived home this evening to find that my Alphas combi boiler (CD24C/32C) not working - it's not firing up.

I've tried to reset it, but I'm still getting flashing lights (referred to as A and B) on the control panel.

No help from the tech centre as yet...

I had my boiler serviced a few months ago and it was fine... but the heating has been switched off, to operate hot water only during the summer months.

Does this sound like it could be something for a professional or is there anything I could check myself?

Any help would be greatly appreciated

Sally

 

[tweakyboy]

Do you have any gas? What is your system pressure?

 

[Sally Rushton]

I don't have any other gas appliances to check.. is there a safe way for me to do so?

The pressure is ok -between 0 -1 which is green band which the manual says is safe...

 

[tweakyboy]

Are lights flashing at the same time or alternatively?

 

[Worcester Man]

Can you hear anything humming inside the Bolier before the lights flash. Is there anything blocking the pipe outside( the pipe where the fumes come out)

 

[tweakyboy]

Im guessing that the lights are flashing at the same time, so its either a blocked flue or a faulty/jammed fan.

 

[Sally Rushton]

No its alternate flashing - and there is nothing obvious blocking the flue... any ideas? Thanks for your help!

 

[Worcester Man]

Pop a bit more pressure in the system through the filling loop. About 1.5bar should do it

 

[Sally Rushton]

Right, added 1.5 bar and it's fired up! Thanks... 0.5 was obviously too low. Hot water for me tonight

 

[Shazman]

Hi, I'm getting the same issue but when I open filling valve, nothing happens, I expect to hear water rushing through the system but nothing. The pressure stays below the green zone and the lights continue to flash alternately. Any ideas anyone?

 

[tweakyboy]

Do you have both sides of the filling loop open?

 

[Alpha man]

Where abouts are you?

 

[Shazman]

I'm based in manor House, Green lanes, London N4

 

[Shazman]

Hi, both sides are connected but I can't seem to see how I can open up the other end as it seems to be fixed solid?! I can open one side.

 

[Alpha man]

Sounds like you need a engineer visit, but you are too far away for me.

 

[Shazman]

Thanks. Got it sorted. Something to do with trapped air. I was scratching my head thinking why I can't hear any water coming through the release valve. Not come across it before but wiser now.