Ferroli optimax pcb blow

[winchmore]

Ferroli optimax 25 OV
Pcb blew after turning on after pump replacement. Nothing on display blank.power on board ok. Fuse not blown? Hence Could also be ignition dcfo2.1 pcb? Could this also blow? May need to replace both?

Awaiting refurb Display board. Any advice many thanks

 

[Deleted member 120897]

What did you use for proving power at the board? Pcb’s can just blow after turning power off.