UM3 getting ER17 printing ASA

[JohnInOttawa 104]

Good morning everyone.  I've seen some posts on this error, including some that resemble what I am seeing, but I didn't see a resolution, so hoping to tap someone's memory here.

 

I have a UM3 running old firmware (4.3.3), printing ASA using (mostly) ABS settings.  AA0.4 at 245C, print bed at 90C.  Print speed 50 mm/s. The first print got an ER17 about 10 minutes into the print, while still laying down brim, lights shut down, head stopped moving, control panel suggested print was ongoing.  No error posted until I cancelled the print.

 

I lowered the temps a bit, tried it again, this time it stopped, same mode, part way through the first line of brim. 

 

First time encountering this error.   I did have the printer wrapped to contain heat and also use a UPS (battery brick) as my power bar.  I don't know if I am causing my own overheat, if the board is failing, or if the UPS is somehow starving the machine.

 

I had a PLA print of the exact same model go fine two days ago, so will try that again and see if it's linked to higher power.

 

Thoughts? Thanks!

John