Ferroli 901 help needed

[DIY-ER 63]

Replaced the pcb in my 901due to chattering relays but when I installed the replacement the pump and fan ran for about 20 seconds before the fuse blew. I replaced the fuse now the leds light (but are dim), the pump and fan run but the red led comes on after about a minute and everything goes off. If I switch off and wait it does the same thing. Any suggestions welcome - thanks

 

[AGAS]

Here's a bit of advice , call an engineer , this boiler is a shyte box

 

[Daniel son]

Maybe you've fitted one of the plugs on the board in wrong?
As agas says thou, maybe best to call in a pro.

 

[DIY-ER 63]

It's been good for a long time and I plan to call an engineer if I can't fix it, just hoping for some pointers - thanks

 

[DIY-ER 63]

Yeah, I thought that but photographed the old board and was super careful when refitting.... hmm

 

[Daniel son]

Normally a red fault light on a boiler means there's a problem with the ignition sequence. If this is the case with your boiler then really you shouldn't be messing with it.
I don't think the gas pros are allowed to give out any advice when it comes to dealing with gas/combustion issues on boilers.

 

[AGAS]

Where did you purchase PCB from ?

What safety checks are you going to do to see if boiler running safely?

 

[DIY-ER 63]

I'm planning to get an engineer in to check the boiler and service it in any case but would like to find the fault first if possible

 

[AGAS]

RTFM

 

[DIY-ER 63]

Thanks, I have but it hasn't helped. The fault finding is quite limited. Appreciate it was a long shot posting but worth a try

 

[AGAS]

Thanks, I have but it hasn't helped. The fault finding is quite limited. Appreciate it was a long shot posting but worth a try

no offence mate ,i tend not to give advice regarding PCB's when people have limited know how and safety issues as this boiler can surprise you