Blue wire on ford transit alternator?

i got my alternator recoiled basically it was reconditioned as it wasnt charging heres the annoying bit i put the alternator back on my tranny and started it up and the battery light was still on gave it a revving stayed on again so i bridged the blue wire on the alternator and touched the + on the battery and then it started charging if i leave the bridge wire on the battery overnight it flattens my battery so i put it on a switch in the cab i start the tranny press the switch it alternates and coz the switch is a dooor bell type switch it releases itself but this is getting annoying does anyone have any idea as to what is happening and how i fix it all the help i can get will be great cheers

Answers:
Try contacting a Ford Dealer dealer for advice they would be familiar with altenator problems on their transits.

Hope you get your problem solved.
you need a diode on the blue wire and then it will work.

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