Extruder heats past set point

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jfcooper3
Posts: 2
Joined: Mon May 04, 2015 4:46 am

Extruder heats past set point

Post by jfcooper3 » Mon May 04, 2015 4:50 am

Howdy - I have finished building my Prusa I3 ( with the Sanguinololu board) and I am having an issue with the extruder heater. When I turn on the printer the nozzle starts heating up, even if I have it disabled in the Repetier software. It will heat to 200 degrees, then continue heating. It has gotten to 290 degrees before I have to turn off the printer.

Any help would be appreciated.
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zhangxueyou
Posts: 1405
Joined: Fri Feb 06, 2015 1:33 pm

Re: Extruder heats past set point

Post by zhangxueyou » Mon May 04, 2015 10:10 am

How about re-burn the firmware? Please check your email.
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Docbrew
Posts: 1
Joined: Sat Apr 18, 2015 12:46 am

Re: Extruder heats past set point

Post by Docbrew » Tue May 05, 2015 12:01 am

I had this happen last night. I had the heat bed and the extruder power wires switched.
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jfcooper3
Posts: 2
Joined: Mon May 04, 2015 4:46 am

Re: Extruder heats past set point

Post by jfcooper3 » Thu May 07, 2015 7:01 am

Unfortunately my issue is not that simple. I had checked to make sure the wires were set correctly, and they were. I also observed that the heated bed would reach the correct temperature and stop heating.

I have flashed my board and now it seems to be completely dead. When I plug in my USB I see no information on the LCD screen, the board is not found by the Windows OS, and the USB cable actually heats up.

Can you send me a replacement board?

John Cooper
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