r/BambuLab•
dsl2000

P1S consistently trips breaker

Hardware Troubleshooting/Help!

Hello, my P1S (purchased in July 2024) is consistently tripping the breaker. I remember it started with a few trips back earlier in the year in January, then I didn't have to print for a while until this month and now it would trip once or twice the first print of the day the past week, to tripping the breaker 4 times in a row today.

The breaker trip occurs either right after the "Downloading..." step, or during "Extracting 3mf" step, or during the bed heating process.

The breaker is Siemens, CAFCI, the only other circuit that has outlets that I can plug into is also CAFCI.

I have tried plugging into both circuits and tried different outlets, all of them trip the breaker.

I tried running a hairdryer off the circuit, the hairdryer does not trip the breaker.

What was interesting is once the first print of the day manages to start, the rest of the prints for that day does not trip the breaker, until I shut the printer off for the day.

Does anyone know what I should do?

Thanks!

Posted Aug 13, 2026, 8:25 PM UTC

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