The Keystone Heddolf G220-1KB is a single-button, Genie-compatible garage door remote designed for legacy fixed-code systems that use 9- or 12-position DIP switches. Operating on 390 MHz, it serves as a reliable replacement transmitter for older Genie and Overhead Door openers that predate Intellicode rolling-code technology. Ideal as a replacement part or spare remote for residential or light commercial applications, the G220-1KB transmits a fixed code that matches the setting on your opener’s receiver, providing straightforward, consistent operation for legacy installations.
Programming is simple: open the transmitter case and set the internal DIP switches to mirror the 9- or 12-switch pattern on your opener or compatible external receiver. This model is not compatible with Intellicode/CodeDodger or other rolling-code systems and will not work with 315 MHz platforms. For best results, verify your opener uses a 9- or 12-switch fixed-code receiver at 390 MHz before purchase. As with any remote-control system, ensure your door operator is in safe working condition and equipped with functional photoelectric safety sensors to meet current safety standards.