0300_0500
Moderate
Bambu Lab · FDM 3D Printers
Chamber Temperature Too High - Enclosure Overheating
Quick Answer
Error code 0300_0500 on your Bambu Lab FDM 3D Printers means: Chamber Temperature Too High - Enclosure Overheating. This is usually fixable — see the step-by-step guide below.
Likely Causes
How to Fix It
1
Open the enclosure door or top lid slightly to allow excess heat to dissipate
2
Verify the chamber exhaust fan is functional by listening for airflow
3
Move the printer away from direct sunlight or heat sources
4
For extended high-temp prints, consider a print pause to allow the chamber to cool periodically
5
Reduce print speed for high-temperature materials to decrease heat generation
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Replacement chamber fan (if fan has failed)
Auxiliary exhaust fan with activated carbon filter
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