Thermal Runaway on MK2 pictures of thermistor?
 
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Isak FPV
(@isak-fpv)
New Member
Thermal Runaway on MK2 pictures of thermistor?

Hi guys,
Ran into Thermal Runaway with my Prusa i3 Mk2 (kit bought end september 2016) the other day. Also got Max Temp warnings after trying to reset.
Cleaned the Nozzle since it seamed clogged and removed the connector as described in the Thermal Runaway guide and soldered the cables together with a a longer (tip could be to have a longer cable their since it is tight from beginning..) It seamed to work directly on my new print but then the second print I got Thermal runaway error again.

SO now my question - I see Josef tells what to check regarding Thermal Runaway error but does anyone have pictures of how it should look. Which screws to check? Since the Thermistor is pre installed from beginning this would be good to know to solve the problem.

If needed to switch what is the cost and what are the actual warranties for this MK2? Running it safely in a house doing 50+ print in 3 months I think this may fall under a warranty "fix" or?

Love this machine anyway and just want to make it work again,
Thanks!

Posted : 28/12/2016 9:17 am
MrMik
(@mrmik)
Honorable Member
Re: Thermal Runaway on MK2 pictures of thermistor?

What were you printing when the Thermal runaway error occurred?

Was it something very similar to previous prints (same temperatures etc) or are you moving on to higher temp materials?

Posted : 30/12/2016 12:12 am
Isak FPV
(@isak-fpv)
New Member
Topic starter answered:
Re: Thermal Runaway on MK2 pictures of thermistor?

Same things as before. But I just realised I got the Thermal Runaway error quiet early after I built the machine. Then I solved it by lowering the fan speed after the 2nd layer and after that I used a silcion stocking for the nozzle. Since that touched the prints some times I removed it and have been printing fine since then. Somewhere along the way I may have change the fan speed due to upgrades of the softwares but the gcode file was the same I used for a while without problem (ABS) - got the same error now on all but the silicon sock helped again now.
Strange but it seams it cools to good the printer.

What were you printing when the Thermal runaway error occurred?

Was it something very similar to previous prints (same temperatures etc) or are you moving on to higher temp materials?

Posted : 30/12/2016 8:22 am
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