Inability to maintain Hotend and bed temps VC3.1 500
My 3.1 500 runs fine for a good length of the print then randomly both the bed and hotend cant sustain temperatures despite rapidly increasing their PWM values. and the n i get an ADC error. Klippy log shows the increasing PWM and falling temps happen to both at the same time. Could this be a PSU failing?
9 Replies
bumpitty bump bump anyone got any ideas?
Not really any helpful ideas, but I dunno if it would be PSU related at the bed gets power stright from the SSR and the hotend from the PSU (by way of control board).
Maybe the ADC chip is overheating and not providing temp data correctly after awhile, try putting a fan on the mainboard?
Correction this on closer inspection is hjust the heated bed. It will randomly see the temp as a negative value (varies) and stop the print but is fine for hours before failure the logs that just show declining temps are post shutdown messages it seems ( at least my untrained eyes read the klippy log that way
Negative temp read seems to imply a thermistor problem
yeah i think i fixed this issue now on to the next one!
thanks all
Mind sharing the solution then marking it as solved?
Im pretty sure its the dupont connector was shaking loose so switched it for a jst. Im just trying to solve another issue which will allow me to run it long enough to be happy its resolved
how do i mark as solved when the time comes?
from what i've seen in other threads, drop a ✅ on it