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I have a Creality Ender 3, I've had it for just under 2 years and during a print one morning it suddenly stopped and powered itself off. After checking the fuse and other electronic components it still didn't power on. I purchased a new switch as I thought the problem was there but after replacing it is still did not turn on.

The printer has been working fine and there were no visible or audible anomalies. I urgently need this to be fixed.

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    $\begingroup$ This might be a broken Power supply as much as a broken board. To test: keep the mains power unplugged, connect the front USB port to a PC. If you get a screen, the board is ok. Just get a new Power supply in that case. $\endgroup$ – Trish Oct 18 '19 at 9:46
  • $\begingroup$ Ok, I will try that. $\endgroup$ – Tim Li Oct 18 '19 at 9:54
  • $\begingroup$ Is anything abnormal here: the power supply? $\endgroup$ – Tim Li Oct 18 '19 at 10:16
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    $\begingroup$ I think it may be wise to invest in a multimeter, you would then be able to check if the PSU outputs 12/24 V (depending on the output voltage). $\endgroup$ – 0scar Oct 18 '19 at 11:41
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    $\begingroup$ Does the outlet that you're plugging it into have power? (Yea this happened to me once with my Anet A8) $\endgroup$ – user77232 Oct 18 '19 at 13:53
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@trish Thankyou for your help.

I did purchased the new power supply and everything works fine now.

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