What happened?
The printer shows the message "Failing to reach target chamber temperature. Keep waiting?". This message is sent when the chamber is heating too slowly and cannot reach the chamber temperature set for printing.
Error name: Chamber failed to reach temp
Error code: #31259 (CORE One)
How to fix it?
Check the fans on the back panel and the vent on the top cover for excessive airflow.
Fans
Go into the printer menu to Tune -> Chamber fan, and lower it or set it to 0%.
Vent
Move the vent to the shut position by sliding one of the screws on the top.
If the issue persists, take some pictures of the printer and its surrounding areas and contact our カスタマーサポート.