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Hot-end resistor not heating!

Shafiqson

Hot-end resistor not heating!
July 18, 2012 03:32AM

Registered: 11 years ago
Posts: 4

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!

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nophead

Re: Hot-end resistor not heating!
July 18, 2012 05:38AM

Admin
Registered: 17 years ago
Posts: 7,879

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.

[www.hydraraptor.blogspot.com]

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Shafiqson

Re: Hot-end resistor not heating!
July 19, 2012 03:55AM

Registered: 11 years ago
Posts: 4

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!

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RetreadNJ

Re: Hot-end resistor not heating!
April 27, 2015 02:45PM

Registered: 8 years ago
Posts: 9

Question deleted.

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