I have chinese printer , now i am facing problem that nozzle temperature not reach to desired level 200 to start printing , i replace nozzle assembly and temperature sensor but still have same problem . only stuck temperature 103-105.All the cords of nozzle assembly is fine
I’m assuming that you have 220–240V AC power to your power supply, or you would have set it to 115V input, but you haven’t shown the DC output voltage. Please find that, and the rated watts, which should be included somewhere else on the supply.
Also, did this previously work and recently quit working, or did it never work?
For more diagnosis, do you have a multimeter and know how to use it?
Then you will want to measure the DC volts across the DC output from the power supply to the control board for the printer. You can measure that at the control board to avoid accidentally touching the AC power.