coolant fan.. not working when grounded.

[potatonet 0]

ok so I got a new fan like all of you people reccomended, Gavin yes I bought one from the US. its a Piece of crap tho. the blade came with excess plastic on it, just barely, had to file it down. VEMO fans are interesting. anyway do I try to ground it out and nothing happens, the wire that goes onto the after run on switch doesnt turn the fan on when grounded. I have replaced the interior relay, #31 with a new one. there are 2 others that are in the front of the car. dont know if I should replace them, probably will anyway. but what are some reasons for the grounding not working?

[flusted 0]

the grounding only works with ignition off.heck you have permanent live at the switch

[potatonet 0]

ignition was off, fan does turn on when temp is at 230, I have to over ride it by turning it onto defrost.