3.4b3 Bed heater fault
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I've seen another thread but there figured I should start another. After upgrading this morning from 3.3 to 3.4b3, I've had multiple heater faults - even after re-tuning. Prior to today, I can't remember the last time we had a heater fault. And the bed temperature really did drop 15 degrees before faulting. It has always been very stable before this upgrade.
Our current settings after retuning:
M307 H0 B0 R0.789 C80.0 D2.90 S1.00 V23.8and the error we received:
Error: Heater 0 fault: temperature excursion exceeded 15.0°C (target 110.0°C, actual 94.8°C)Please let me know if there is anything else I can research on my end. Thanks
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My understanding is that there was a heater fault detection case that would never actually get triggered before but has now been fixed.
You say the 15c drop was actually correct? So the fault was accurate?
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@phaedrux maybe that is a better way to look at it.. the fault was correct but the bed temp has been solid until upgrading. I'm re-tuning again now and going to try again here soon.
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@oozebot I had the same problem and a retune seems to be working. I’m wondering if it also was triggering my mid print stalls/crashes by silent faults.
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This post is deleted! -
So the bed heater actually died. Hard to believe the timing, but maybe the fix that just went in as part of 3.4b3 caught it where it had gone un-diagnosed previously.
Sorry for the false alarm - I'll mark this as solved.
