The Genie 38874R2.S Circuit Board Assembly is a genuine OEM main control board for select Genie residential garage door openers. This replacement logic board governs motor operation, travel limits, force control, and lighting, while integrating the onboard radio receiver for Intellicode remotes and keypads. It also interfaces with Genie Series II wall consoles and the Safe‑T‑Beam safety reversing system. Use it as a direct replacement to restore normal open/close function and safety monitoring when the original control board fails.
Compatibility is commonly listed for Genie models 1022, 1024, 1042, 2022, 2024, 2027, and 2042; always confirm by matching 38874R2.S (or 38874R2S) to the part number printed on your existing board and the opener’s model/serial label. Installation is performed inside the opener head: disconnect power, transfer the wall control, Safe‑T‑Beam, and motor/limit harnesses to the same terminals on the new board, secure the board in the original location, then restore power. After replacement, reprogram door travel limits and force settings, and reprogram handheld remotes and wireless keypads according to the opener’s manual. Verify Safe‑T‑Beam alignment and operation, as the opener will not run with sensors misaligned or bypassed. Designed for compatible Genie residential chain or belt drive operators using Series II accessories.