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New to 3D printing, Creality Ender 5 Pro - issue with Preheat PLA

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    New to 3D printing, Creality Ender 5 Pro - issue with Preheat PLA

    Set it up and all seems right. When I hit Preheat PLA, or any other preheat, the printer blinks like there is a small power surge and restarts the main monitor. The troubleshooting guide states I need to reconnect the wires, which I double checked along with being sure they are connected as they should. Please advise! I’m a little over my head. Yes, I’ve emailed Creality tech support but with a long weekend, it may take a while. TIA!!

    #2
    I would bet you have a short in the wiring (or a bad power supply). I would check the bed where the wires are attached for damage as this is usually what heats first after "preheat pla, all", and go from there. An option for troubleshooting would be to disconnect the heated bed wiring (make sure it won't short) and then do preheat pla all, and it should try to heat and not instant reset. Depending on the firmware safety, it SHOULD, try to heat then go into fault/protection due to the temperature not rising as expected with power being sent to the bed. If it still does the insta-reset then reconnect the bed heater wiring and do the same thing again with the hot end heater wiring and try to heat to see what happens. You can disconnect wires pair by pair and test until you find the short, or you use a multimeter and check for continuity to ground and continuity between wiring (the technical/correct way). Treat it like a chain, remove and replace link by link until the result changes. If you choose to disconnect the wiring and test make sure they don't short against, rest on, or drag across the board. Happy printing.

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      #3
      I just got mine yesterday and I have the exact same problem. The machine also reboots if I try preheat ABS. I think the power supply is defective.

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        #4
        So, MadeBye is obviously not a novice like me. I have emails going into the company. They wanted a video and for me to heat the bed and nozzle separately. I found that the nozzle could go to 200* no issue separately. The bed restarted when asked to go to 50*. Any further info would be great!

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          #5
          Trying to disconnect the bed as mentioned by MadeBye above and not sure which to disconnect. The wires are labeled as "fun 1" and "fun 2" I'm assuming are the one for the bed as it shows in the manual. When I did this, it responded the same way, blinks off and restarts the monitor.

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            #6
            When I disconnect "fun 1" a blower or something spinning on top turns off. The "fun 2" may be the issue.

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              #7
              With "fun 2" disconnected, I tried doing separate bed (restart) and "PLA End" (worked fine heating the nozzle). Any assistance would be very helpful.

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                #8
                I looked closer. The "fun 2" was NOT the bed. When I disconnected the yellow connector bed cable and hit "Preheat PLA" it worked without restarting. It heated the nozzle and obviously not the bed. So, it appears to be the red wire/yellow connector bed cable that is not working properly. Step-by-step more info is coming forward.

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                  #9
                  So, as above stated, it didn't restart, but the monitor gave a "Heating failed, PRINTER HALTED, Please reset" error.

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                    #10
                    I think the driver circuit in power supply is not powerful enough to handle the demand. This is either a electronic design issue or they substitute production part that is not qualified. Anyway, as an electronics engineer, I can tell you that the power supply design is not adequate for this application. The circuitry should be design to handle at least 20% more than the power requirement. In this case, it doesn't even meet the power consumption. Hence substitute any part will result in this kind of failure.
                    I'm trying to work with Banggood and they require a video of the issue. I had to change the size of the video to the lowest resolution to fit in the email.

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                      #11
                      I figured it out. The voltage was set for 230 and not 115. Funny, I didn’t see that in the directions...

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                        #12
                        Originally posted by iDrDenton View Post
                        I figured it out. The voltage was set for 230 and not 115. Funny, I didn’t see that in the directions...
                        You mean you got directions? I got a small booklet with mine that kind of instructed a few moves but it is sorely lacking. Like I found out you can't use a Micro card larger than 32. Was that in the book? Nope!

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                          #13
                          I’m sure I got the same instructions you did. Lol

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                            #14
                            Thank You for this thread I tried half the day trying to update the firmware. And did.

                            But still I had this issue...

                            voltage selector was set to 230. I read the manual cover to cover 3 times A quick note in the setup seems like not to much to ask.

                            Funny thing is I was getting it to print and printed out 3 models but I had to manually preheat one thing at a time. Also I work in automation and controls, I do design of electrical equipment that goes in all over the world. I am constantly making sure things work on different power grids. But about 10 years ago the this switch has disappeared on all industrial and commercial equipment. Now they auto sense what grid they are on. Now everything works on 100-240V without making a change the last thing that I had to deal with that was kind of like this was my Antminer and the instructions highly stressed it could only work on 240V because it couldn't run on 120V due to pulling over 15amps at that voltage,

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