HVAC blower won't turn off.?

My wife was cleaning out the utility closet and pulled on the wiring that connects from the compressor and t-stat to the hvac unit. As she did that the blower turned on even though the system was turned off. I tried taking the G wire off but blower still runs. When I turned t-stat to cool seems to turn on the a/c but the compressor doesn't run so I think it could be a short in one of the two wires that run from compressor to the unit. Should I just replace the wire? How would I go about testing to confirm?