FAAC 401MP-S Circuit Board

FAAC 401MP‑S is the main logic/control board used in FAAC gate‑operator systems, handling motor drive commands and safety interlocks. Common failure points on this class of boards include degraded power‑rail regulators, damaged MOSFETs or relays that control the motor driver, and burnt capacitors or solder joints caused by over‑current spikes; firmware corruption can also manifest as intermittent logic resets. First‑check steps: verify 24 V DC input stability with a multimeter, inspect for visible component damage or burn marks, and review any fault codes displayed on the operator panel or via the serial diagnostic port.[oss-gpt-20b]

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