No Heating! Oil Heatslave Lock Out 9F 855

[dagoof]

I'm hoping someone could help as my dad's 18/25 Heatslave has stopped firing and no one can come out til next week.

He's got plenty of oil, so it's not run dry. I thought maybe it needed bled but that hasn't helped. The condensate pipe was blocked with crap, so I've cleaned that out and cleared the secondary heat exchanger. I also replaced the fuel burner nozzle.

The boiler gets power but the fan or pump doesn't spin up (no noises other than relays clicking before lockout code.

Could anyone advise? I take it there's a fuel filter I could change? The only engineer that even got back to me is saying it'll be 5 days before he can make it!

 

[Exedon]

With power switched off see if fan blades actually move.

 

[dagoof]

Thanks for the reply Exedon, where's the fan accessible, is it at the rear or at the top (where the flexi ducting feeds in)?