For the last couple of days my central heating boiler sounds as if water is boiling and bubbling up inside it, it has now stopped working. I have tried resetting it and it fires up for a minute or so and starts to bubble again before cutting of. Has anyone any idea what might be wrong with it?

AMcM, January 2017

It sounded as though the water was boiling - it cuts out after a short period and needs to be reset.

The danger with all boilers is that they get too hot - pressure builds up and they explode!

To guard against the danger of exploding there's an overheat cut out that turns the boiler off if the circulating pump fails - you might consider looking to your pump.

Good Luck..., January 2017

Does the condensate pipe discharge outside? Is it ***** cold?

This may be worth reading:

http://www.vokera.co.uk/common-winter-boiler-enquiries/

Also

http://www.ultimatehandyman.co.uk/forum1/vokera-compact-boiler-locking-out-t65418.html

XXX, January 2017

Manual here:
http://www.centralheating.co.uk/system/uploads/attachments/0000/5566/Compact_A_User_and_Installation_manual.pdf

Faultfinding info on page 4 or thereabouts.

Some more info here

http://blog.superwarm.co.uk/5-common-faults-of-a-vokera-boiler-and-how-to-fix-them/

Check anyone working on the boiler is Gas Safe certified.

XXX, January 2017