Genie garage door opener transformer same as old model 24412RCompatible with ALL Genie PRO Screw Drive models: 83, 88, 90, 93, 98, CMX-7500, -7600, -8500, -8600 and Chain Drive models PMX-60, -65, -70, -75, -80, -85, -300IC and 500ICReplaces burned out transformer usually found directly on the circuit boardOriginal Genie replacement partTypical symptoms of a bad transformer include a humming or buzzing type sound coming from the Genie motor head and your garage door opener not activating