Notifications
Clear all

Bed Thermal Runaway  

  RSS
Kurvalak
(@kurvalak)
Eminent Member
Bed Thermal Runaway

After a print (PETG). Purging. I removed the bed sheet (and I did move the bed doing so). Then started a new print (PETG).

Got the screen flashing red with the message Bed Thermal Runaway with the fan 100%. I hit the reset button. Everything back to normal.

Probably because I moved the Y axis bed out of range ?

Best Answer by Bodo:

@pascal-l4, there's an issue reported on github that is similar to yours:

https://github.com/prusa3d/Prusa-Firmware-Buddy/issues/24

My workaround is to stop the pre-heating, assemble the bed until the bed temperature in the display in falling at a slower pace; ie. <1 °C (K) per second, only then I restart heating. Works ok, is the smallest possible delay/heat loss I found.

Posted : 01/01/2020 10:07 pm
Crawlerin
(@crawlerin)
Prominent Member
RE: Bed Thermal Runaway

It had been observed that if you put cold steel sheet onto bed, it may trigger thermal runaway.

Posted : 01/01/2020 10:36 pm
Bodo
 Bodo
(@bodo)
Estimable Member
RE: Bed Thermal Runaway

@pascal-l4, there's an issue reported on github that is similar to yours:

https://github.com/prusa3d/Prusa-Firmware-Buddy/issues/24

My workaround is to stop the pre-heating, assemble the bed until the bed temperature in the display in falling at a slower pace; ie. <1 °C (K) per second, only then I restart heating. Works ok, is the smallest possible delay/heat loss I found.

Posted : 02/01/2020 4:44 pm
Share: