geeetech prusa I3 x extruder not heating up

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liltroy85
Posts: 4
Joined: Wed Sep 30, 2015 1:21 am
Location: butler

geeetech prusa I3 x extruder not heating up

Post by liltroy85 » Wed Sep 30, 2015 1:39 am

I have a prusa I3 x and i cannot get the extruder to heat up. It doesnt go past 32 degrees celcius.

Sherry
Posts: 362
Joined: Wed Jul 01, 2015 12:52 pm

Re: geeetech prusa I3 x extruder not heating up

Post by Sherry » Thu Oct 01, 2015 10:06 pm

hi,please see if those three red toward heating cable connector leds are lighted up or not.
Manually heat up the hotbed and extruders, if the LED lights under the hotbed and extruder slot are lighted up, then the mosfet that controls the heating is good. next,please measure the resistance of two end of heating cable,it's resistance is about 3.6 ohms.

liltroy85
Posts: 4
Joined: Wed Sep 30, 2015 1:21 am
Location: butler

Re: geeetech prusa I3 x extruder not heating up

Post by liltroy85 » Fri Oct 02, 2015 1:36 am

computer board
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20151001_130952.jpg
no red leds?
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liltroy85
Posts: 4
Joined: Wed Sep 30, 2015 1:21 am
Location: butler

Re: geeetech prusa I3 x extruder not heating up

Post by liltroy85 » Sat Oct 03, 2015 1:05 am

i dont see any red leds lighting up and i have 3.3 ohms across the heating cables. before i was able to manually heat the hotbed up but not the extruder. now neither will do anything.
Attachments
20151002_111158.jpg
lcd reading error mintemp
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20151001_130952.jpg
computer board
20151001_130952.jpg (376.29 KiB) Viewed 4780 times

Mark
Posts: 1553
Joined: Thu Aug 06, 2015 9:19 am

Re: geeetech prusa I3 x extruder not heating up

Post by Mark » Sat Oct 03, 2015 9:11 pm

hi, there's two places to check:
1) you have connected the extruder heating wire to the wrong place, it should be the first one;
2) the thermistor of the extruder1 is open circuit, please check the wires, see if not correct connected
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