On 01/02/2018 21:34, Fredxx wrote:
The earths are ok, no burn marks.
I dont think the blasted fuse is in a fuse holder as such as when I
check on ebay they look similar ie as if they are in a holder.

I have known a suppression type capacitor to go short and the the
corresponding fuse to go in an old TV. In my case there was little left
of a conventional holder.

In this case the fuse is in series with the thermister.

I suspect the problem is whatever was plugged into CN3.

CN3 connects to the on/off switch on the outer casing.