As some of you may or no my car overheated the other day and im sure its the fan switch at fault, as when i take the plug of it an join them together with a wire they always come on, so i have now taken the switch off to get a new one but i wanted to test it first so i boild the kettle an put it in the hot water an nuffin so i thought gerat easy fix, but then i put it in a pan an put it on the oven and after a will it worked then didint then did.

so my qestion's are:

what temp should they work???
should the kettle make it switch??
does this sound like i have a faulty switch an should be ok with a new one??

thanks

(sorry about spelling??