Do not rely on third-party forum links from 2024. They will likely host the v3f3 or v3f4 PDFs, which are incompatible with your current hardware revision.
Check for motor overload or check J20 connector on the PBCM board. Professional Setup and Maintenance Tips Arca III Product Instructions Version 3 | PDF - Scribd orona arca 3 manual pdf v3f5
: Manages door motor thermistors and LCP contacts. Do not rely on third-party forum links from 2024