EGO LM2150SP Keeps Blowing Fuse

[Spittin_Fire]

I have an EGO LM2150SP that was supposed to fixed under warranty. Long story short they had to end up sending me a new mower. I now also have the old mower and thought I would take a stab at fixing it. The fuse was blown and I replace it with a new fuse. It immediately blew the new fuse without even turning on when I tried to start it. I'm not an electronics expert, but I understand electricity and how to use a multimeter. I'm wondering if it's even worth the time and money to continue to try and diagnose. My first thought is maybe a short in the motor trying to pull to much amperage, but I don't even know where to begin to try and diagnose. Any input from the members would be greatly appreciated.

Thanks in advance!