Porsche 944 cooling fan weirdness

[Rocket88]

strange one this.........cooling fan cuts in, and runs, and runs, and runs..... even when car has been switched off for about 3 eons. Removing relay or fuse stops it....replacing either, and off it goes again........

[rainagain]

sticky thermoswitch?

[Noel Tidybeard]

borked fan switch or relay sticking open