Hi all my defender puma 2.4 ac seized up and completely snapped the bracket of which is also connected to alternator. so i got a new bracket bearing for compressor so i hasve replaced everything .now when i try start it doesnt want to .it sounds aS IF ITS A FFLAT BATTERY. I have a dual battery system .the car has been standing for 2 weeks. whan ia battery centre opens im going to check the batteries. i am not a mechanic so i could have done something very wrong, any input would be greatly appreciated