Review on 🖨️ Wangdd22 1.75mm Printer Extruder Accessories - Optimize Your Printing Experience by David Skyline

I connected this hotend to my 3D printer and immediately encountered two problems. First, when I turned on the heater to heat up, the printer immediately stopped due to thermal overload. I checked the thermistor settings in the hotend in my Marlin firmware and everything was correct. I had a couple of spare thermistors that I bought recently, so the first thing I did was replace the thermistor that came with the hot end. This fixed the problem and the heater started heating. The second problem was that the fan was not working. I enabled it manually from the printer's display, but it had no effect. It still hasn't happened. I tried another fan head and still nothing. I had a spare fan of the same size in my parts cart so I tried it and it worked fine, so the problem was somewhere in the fan itself. I threw it away and used the fan from the parts basket. Two parts did not work right away because both were defective. Not very high quality and not for that much money if you need to change the thermistor and fan