Hello all, I'm in need of advice/assistance. I've had my Robo R1+ for around two years now, but am admittedly a novice at best when it comes to repairing/replacing hardware. I've been running with all factory parts and have had only a few minor issues ... until tonight. In the middle of a print I get a hardware error message. Inspection reveals one of the two red wires going into the heater core of the hotend has come loose. Attached is a picture of what I'm seeing. Quick search reveals that a replacement heater core/wire is sold in the Robo 3D store, so I'm assuming I can somehow replace only the heater core component of the hotend? At first glance, though, I'm unsure how to begin removal. I'm hoping to get some guidance on this process ...or, would I be better off just replacing the entire hotend? Thanks for any help you can provide.