<p>I have been using my Anet A2 for about a year.  A few problems but none that I haven't been able to resolve. Today it suddenly stopped auto homing.</p>

<p>Using the position commands I can advance the X and Y positively but not negatively (after I manually re-position the carriages before turning the printer on).  Also the Y stepper motor makes an unusual noise and it will over advance the Y axis. This behavior was preceded by a feed fault. The print started fine but the stepper motor stopped feeding shortly after the print started.  </p>

<p>I am printing from an SD card as I always have. I changed SD cards thinking it might be a connection problem and I checked the G-code and all the commands including the E commands seem to be there. I have checked all the electrical connections - they seem to be fine.</p>

<p>Any suggestions to solve this?</p>

[{'answer_id': 6292, 'author': 'profesor79', 'author_id': 9730, 'author_profile': 'https://3dprinting.stackexchange.com/users/9730', 'pm_score': 2, 'selected': False, 'text': '<p>The fuse rating is same as described on the board - so that shall be no issue with it.</p>\n\n<p><strong>My main concern is why the fuse is down?</strong></p>\n\n<p>Was there a short-circuit? As this is mains fuse - that suggest a big-bang, so, please check carefully hot-end and bed heater connections before restarting the device, to avoid replacing another fuse.</p>\n'}, {'answer_id': 6294, 'author': '0scar', 'author_id': 5740, 'author_profile': 'https://3dprinting.stackexchange.com/users/5740', 'pm_score': 1, 'selected': False, 'text': '<p>To add to the answer of <em>@profesor79</em> (which you <strong>absolutely need to address first</strong> (find the cause why it blew); else the fuse might blow again), you might be interested in installing fuse clamps. As <em>@fred_dot_u</em> mentions:</p>\n\n<blockquote>\n  <p>use caution when soldering leads to the fuse that you do not de-solder\n  the internal fuse from the caps</p>\n</blockquote>\n\n<p>is that if you incorrectly solder the fuse, you might de-solder the caps, soldering the clamps is easier.</p>\n\n<p><em>Example of fuse clamp:</em><br>\n<a href="https://i.stack.imgur.com/HwRFQ.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HwRFQ.jpg" alt="5 mm fuse clamp"></a></p>\n'}]
['https://3dprinting.stackexchange.com/questions/6293', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/11267/']