The Marantec M5-831 Modular Receiver (part number 78236) is a plug-in radio receiver module for compatible Marantec garage door operators, used to restore or enable wireless control with Marantec Digital transmitters. Installed directly on the opener’s control board via the designated modular interface, this receiver provides secure rolling-code radio functionality for everyday residential applications and is commonly used as a replacement part when the original radio module fails or when upgrading an operator to Marantec’s Digital radio platform. The module is powered by the opener, so no separate power supply is required, and the receiver resides inside the operator housing for protected operation.
In typical U.S. installations, the M5-831 works with Marantec Digital 315 MHz handheld remotes such as the M3-series transmitters and can support pairing through the opener’s learn/program sequence. It is intended for compatible Marantec operators that accept a modular plug-in receiver; always confirm the operator model and radio platform before ordering to ensure compatibility. Installation generally involves disconnecting power to the opener, inserting the receiver module into the designated port, restoring power, and then programming the desired remotes per the opener’s manual. For vehicles using integrated HomeLink, additional accessories may be required depending on vehicle model year. Follow all safety guidelines: disconnect power before servicing, mount and program indoors only as directed, and verify proper door operation and safety reversal after programming. This receiver is suited for residential garage door operators and is not a stand-alone universal receiver for third-party openers.