Boiler tries to start up fan goes,sparking ok, then makes a ocoilating noise and goes into red fault lock out this only happens when it cold ok during the summer.
I have changed the thirmisters if i keep running hot water and resetting it ,after about 10 times it fires up and i switch it to heating
please some one help me i,m a sparks out of work at the moment no money coming in .
Fitz

Fitz, November 2009

Thanks for advise Brucey I adjusted the min gas burner pressure on the gas value. all ok now starts up fine now.

Fitz

Fitz, November 2009

Sounds like a sticking gas valve, quite common fault on the ferrolis

Brucey, November 2009