Arggghhh!! the official 'I hate Boilers' thread. Pilot light

[johnvixen]

Hi people!
I'm back, back from the grave!
After i bled the radiators I upped the pressure just above 1 bar.
2 weeks he central heating was working a dream! now over the past few days it's just been switching itself off and the fan goes on.
Everytime i want to heat the house i have to kick start the pilot with the pilot light and even then the central heating will work for about 15 minutes then conk out again and the pilot light will go out and the fan will go on.
Any ideas???

 

[COG]

your pilot will be liked into an overheat stat, so i would say from your previous topis that you still have a circulation problem. you mentioned flushing out the rads but what about the pump and the original pipework. the system should have been flushed out with a cleaner such as sentinal x200 this will remove all the flux and other debri, chances are your pump will need replacing if its running slow or striping down and cleaning if its a grundfoss. PS what make and model is the boiler plus how old.