Different codes. Same failure family.
Linear, Marantec, Craftsman, LiftMaster, Chamberlain and Genie use different codes, lamps, LEDs and terminology. This library keeps those signals intact while grouping them by the homeowner problem they actually help diagnose.
Safety Beam Obstruction, Alignment & Interference
Use this family when the opener's safety-beam system is powered but the beam is blocked, misaligned or disturbed by interference.
Compare brand-specific signals →Safety Sensor Wiring, Power & Hardware
Use this family when one or both photo-eye indicators are dark, the manufacturer reports shorted/reversed wiring, or the source/receiver is not being powered normally.
Compare brand-specific signals →Mechanical Resistance & Force Detection
Use this family when the opener senses abnormal load, the door binds or the failure changes when the door is operated manually.
Compare brand-specific signals →Travel, Limit & Position Setup
Use this family when the opener stops at the wrong position, reverses after floor contact, cannot learn travel or reports a travel-module/limit fault.
Compare brand-specific signals →Operator Electronics, Control Board & Thermal Protection
Use this family when the manufacturer points to internal control electronics, a board/interconnect interrupt, battery/charging electronics, or a temporary thermal/over-cycle protection state rather than a beam, travel, or accessory fault.
Compare brand-specific signals →Remote, Radio & Control-Side Failures
Use this family when one control path fails while another still works: handheld remote, wall control, wireless accessory, or an unattended myQ command.
Compare brand-specific signals →