VFC Scar-H, does yours lock up? Possible fix here
 

There are a few things you can do.

Remove the fuse, and change the wiring. Might as well upgrade to a deans connector also.

Removing the fuse is a must, the fuse creates a lot of resistance thus drains your battery at an alarmingly increased rate.

However, these solutions did not fix my problem, although doing such is beneficial for several reasons.

Thanks to my buddy he spotted something odd with the spring guide. The VFC stock spring guide is made up of two parts that screw into each other, I guess with time and use the spring guide party unscrewed. I can't be sure of this, but I believe this was causing the motor to not be able to compress the spring. You will obviously need to completely take the AEG apart to have access to the gearbox internals. CAUTION, this AEG model is a pain to disassemble and reassemble. Find a tutorial video on youtube... So once you have the spring guide in hand, all you will need to do is take it apart, add some thread lock to prevent this from happening again, then reassemble.

My VFC Scar works perfectly now, so hopefully if you are experiencing the same issue this will be the solution.

Interesting. Mine still locks from pulling the trigger too quickly. I just had it worked on but im gonna get him to drill a hole in it this time and give me real wires and get rid of the fuse like you say. See what happens. Also my 11.1v 1000mah battery burns out in 500 shots. Could be a fix!

First things first, why use a 11.1v lipo? That puts a lot of stress on your internals, especially if stock.