Structural / Functional Issue

How to Fix Chamber Temperature Too High (PLA/PETG Softening)

Step-by-step fix for chamber temperature too high (pla/petg softening) on Bambu Lab printers including X1C, H2D, P1S, and A1.

Related Bambu Studio Error Codes

0300-801803008018

How do I fix chamber temperature too high (pla/petg softening)?

  1. 1

    Open the front door or top cover when printing PLA or PETG. These materials soften inside a sealed enclosure (PLA ~55°C, PETG ~75°C).

  2. 2

    Lower the bed temperature by 5–10°C to reduce chamber heat buildup.

  3. 3

    After printing high-temp materials: wait 10–15 minutes with the door open before loading low-temp material.

Pro tip: If you need to print in a hot chamber, select "High Temp (60°C+)" above to see materials that won't soften.

Related Print Issues

Weak Layer Adhesion / DelaminationPart Breaking Along Layer LinesPoor Dimensional AccuracyPart Too Flexible / Not Stiff EnoughBed Adhesion Failure / Part Detaching

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