Controller disconnects intermittently after cleaning console

I noticed quite a bit of dust build up on the back and sides of my console, so I took it apart to blow some of the dust out of it. I put it back together and it was working great, until the controller disconnected out of no where. I reconnected the controller, but it wont make it more than 3 minutes before disconnecting again.

I assume it has something to do with how I reattached everything, but I don't really know what to do as far as troubleshooting.

The only wires I disconnected were the plug going into the power supply. Other than that, I just blew everything out from there.

Any ideas?