Ideal logic combi 30

[chrishawkins]

Hi can I have some advice please ?! I have hot water but no heating. The boiler has been getting worse recently , I have had Fault F1 pop up some time ago and do the usual turn taps underneath to get it back to normal. Lately I have had to do this nearly every time it has been used. Now I have no fault reading on the screen. Luckily I have hot water but the heating starts up blue light stay on for about 45 seconds and then nothing.
Please can you advise me on what this could be and if it's possible to do my self or will I have to call someone out to do it.?!
I live in the Lincolnshire area how much roughly will this cost to repair ?!
Any help would be muchly appreciated.
Thanks in advance.

 

[diamondgas]

You haven't inadvertently turned the wrong valve underneath when re-pressurising?

 

[chrishawkins]

Hi.,
I can't be certain that I did turn the wrong valve ! I now have F2 code come on which it wasn't doing before , still got hot water. Any more advice would be appreciated.
Thanks