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Extruder heats past set point
Posted: Mon May 04, 2015 4:50 am
by jfcooper3
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.
Re: Extruder heats past set point
Posted: Mon May 04, 2015 10:10 am
by zhangxueyou
How about re-burn the firmware? Please check your email.
Re: Extruder heats past set point
Posted: Tue May 05, 2015 12:01 am
by Docbrew
I had this happen last night. I had the heat bed and the extruder power wires switched.
Re: Extruder heats past set point
Posted: Thu May 07, 2015 7:01 am
by jfcooper3
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