Dyson AM05 hot and cool fan heater pcb burned

[fialax]

I just got one of these fan heaters to my hand and after closer look i found burned pcb seams to be for heater elements it has two triacs on. from top looks everything fine but from bottom the pcb is completely burned. Do anyone know about any site where i can get this part from? check the pictures below. thanks.

[wraper]

Those are two optocouplers, they unlikely to fail with triacs remaining functional. And I don't see a single part burned. Just a board covered with something dark, often nothing more than dust is needed to make the board this dirty. First clean the board and show if there are any parts which emitted the magic smoke if there was such in the first place.

[soswow]

fialax, have you found what's up with yours?

Funny enough, I also have burned out PCB for Dyson AM05 fan. But this time it's another one AND I am sure there is something burned up:

So, the question is the same - is there a place that google can't recommend me where I can try and buy a new/used/whatever one?