Hotend heating up non stop by itself!!

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ishaanmine
Posts: 1
Joined: Sun Nov 17, 2019 6:53 am

Hotend heating up non stop by itself!!

Post by ishaanmine » Sun Nov 17, 2019 6:55 am

My hotend heats up when I turn on the machine, it heats non stop to over 250C. By that time I have to unplug the extruder carriage plug to stop it from over heating.

I tried to upgrade firmware to 37.58 but did not solve the issue, please help, I can't print or use the printer in any way.

Jarda3d
Posts: 189
Joined: Sat Jan 26, 2019 8:42 am

Re: Hotend heating up non stop by itself!!

Post by Jarda3d » Sun Nov 17, 2019 7:51 am

And hotend is really hot, or it is cold?

If it is hot, then probably power mosfet is buried. If it is cold, then circiuty about thermistor is bad. If thermistor have capacitor for filtering, then capacitor is bad. If not, then thermistor is bad.
A10M Slic3r profile: here and fresh on github (lot of tips here)
A10 Slic3r profile: here
TIP: tight all screws and wheels (except right side of Z axis) and re-align frame while assembly. And silence it.

sybatsix12
Posts: 2
Joined: Tue Dec 15, 2020 4:30 pm

Re: Hotend heating up non stop by itself!!

Post by sybatsix12 » Tue Dec 15, 2020 4:34 pm

Hot end of medium-sized modern cement kiln, showing tyres, rollers and drive gear. Cement kilns are used for the pyroprocessing stage of manufacture of Portland and other types ... The hot clinker next falls into a cooler which recovers most of its heat, and cools the clinker to around 100 ... The pellets then drop into the kiln.
https://myhr.onl/

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