(T) My radiator cooling fan won't switch off !!

Hi, I have a Marea Weekend TD 100 and the raditor cooling fan refuses to switch off. I have had to unplug it. I changed the switch that screws into the radiator , thought that might do it, but no.
Any ideas would be gratefully received........Phil

Hi Phil and welcome to the forum:D

Not sure what kind of switch you replaced but...

The switch is a neutral feed so an earth on the wiring would keep the fan running. This is the most likely cause on fans controlled from a radiator switch.

If you have a temp sensor rather than a simple switch then it could be the relay burnt on.

Hi, Yes as the previous messge says, these models have a common problem with the fan relay either short circuiting or burning out the relay contacts so it cant pass any current. i would think this is your problem! Oh and its usy=ually found adj to the battery.