Being the genius that I am I didn't think about taking a picture of the cable connections on the broken pump timer of my GF's pool before exchanging it for a new one. I believe either the red cable going to the first pole is incorrectly connected or the white one. The pump does turn on right now but it looks like it's only running at half speed. In my totally amateurish way of diagnosing the problem I would say the pump is running at 110V instead 220V as its supposed to but I really have no idea what I am talking about.
The timer is a T104M DPST (220V)
Here are the instructions.
If you know how to fix the problem, please explain it as if you were talking to an idiot. I can measure volts and continuity. That's the extent of my knowledge of electricity.