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Hot-end resistor not heating!

Posted by Shafiqson 
Hot-end resistor not heating!
July 18, 2012 03:32AM
Hello everyone.

I have a problem with my nearly finished build of Prusa w/ Sanguinololu. The hot-end resistor doesn't heat up! I'm getting 12V across the resistor, but no heat when I set the extruder temperature in Pronterface.

The thermistor is checked, shows correct temperature.

Please help!
Re: Hot-end resistor not heating!
July 18, 2012 05:38AM
If you actually have 12V across the ends of the resistor and it doesn't get hot then it is faulty or the wrong value. Try measuring its resistance when disconnected from the electronics. It should typically be 5.6R or 6.8R.

Re: Hot-end resistor not heating!
July 19, 2012 03:55AM
Yeah, that's what I figured. The meter showed infinite resistance, which means that it was faulty by default or that I managed to damage it somehow. Which seems plausible, might have broken it when I was drilling a hole for the thermistor in the heater block (with the resistor inside being the dumbass that I am lol).

Thanks for replying!
Re: Hot-end resistor not heating!
April 27, 2015 02:45PM
Question deleted.

Edited 1 time(s). Last edit at 04/27/2015 04:10PM by RetreadNJ.
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