<div><div dir="auto"> You would have to double check the burned areas inside of the control box for hints, but from personal experience, 3-D printers burning are usually the heat bed connector on the motherboard over amping, shorting and catching fire. For future reference, you can buy a cheap adapter card on Amazon that has a MOSFET that allows the heat bed to pull power directly from the power supply which prevents the over amp situation.</div></div><div><br><div class="gmail_quote"><div dir="ltr">On Thu, Jan 24, 2019 at 10:12 PM Ryan Coons <<a href="mailto:ryancoonsyhg@gmail.com">ryancoonsyhg@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Ahoy!<br><br>As I was beginning to print part of a friend's birthday gift, my control box made a non-standard whirring noise and an unpleasant odor. I haven't identified the root cause, but it's probably electrical and burning, given the Wanhao's known grounding issues and my experiences with foul smells. Has anyone encountered this before? If so, what do?<br><br clear="all"><div><div dir="ltr" class="m_1876412661759639256gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Cheers,<br>Ryan Coons</div></div></div></div>
_______________________________________________<br>
This is the general mailing list.<br>
This list is for public discussion about Makers Local and related activities.<br>
To stop receiving mail from this list, write to <a href="mailto:general-leave@lists.makerslocal.org" target="_blank">general-leave@lists.makerslocal.org</a>.</blockquote></div></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature">Regards. David<br>256.615.2277<br>Sent from my cell phone</div>