Valiant Eco tech fault message

[Robpoole]

Hi I have a Valiant eco tec plus boiler and a fault message has come up that say's F75. I have looked through the manufacturers book but cannot find this fault in it. Can anyone please advise me on what the fault may be. The boiler will not fire up but you can hear it trying to produce a spark to light itself. Just a bit of background? I had a leak in my pipework and the pressure in the boiler kept dropping, that has since been fixed but the boiler has failed to work since. It is located in the roof space of my house and I wonder if the cold could affect it, especially as it hasnt been on for about 3 weeks due to lack of funds to repair the leak. Thankyou for any help that you may have.

 

[mickyg]

I will list the potential faults in order of most likely:
1- Blocked low water pressure sensor or canoe filter(behind sensor)
2- Blocked or failed pump
3- Blocked flexi hoses
4- Blocked heat exchanger

 

[Robpoole]

Thanks for you quick reply MickyG. Sorry to be a pain but will I be able to sort the fault by draining the pipework and refilling etc or am I gonna need more money and a heating engineer to repair it. ?

 

[bobw1956]

Unless you can do all the things mickyg listed then you need a heating eng;

 

[Robpoole]

Thanks for all your help, guess I will start saving my pennies again. Love the web site really really helpfull. thanks again