Hi, I’m new on the board here, but I’ve been using my Wanhao Duplicator i3 Plus for about a year now, and have overcome many…“challenges.” However, this latest has me stumped. The printer fails to extrude after a time, due to the side cooling fan not operating. It had been working, then I had bad PLA which I had to dig out and I accidentally broke several of the blades. It worked for a time after that, then quit. I’ve since replaced that fan with a new one (from Ultimate 3D Printing Store, as the local fan I obtained was the incorrect 24V), but the new fan is not operating at all. Any suggestions?