My first 3D printer, the CTC Dual Extruder came today, I know its low budget but it’s all I could afford. I screwed in the extruder, went to turn it on and immediately as the power was turned on the fuse blew. It has two voltage settings 230V and 115V, Ive left it on the default 230V as Im currently in the UK and thats the mains output voltage. Could this just be a dodgy PSU or am I being a complete plonker?