Genie 24412R Replacement Transformer Model 24412R Compatible 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 500IC. Replaces burned out transformer usually found directly on the circuit board Original Genie replacement part Typical symptoms of a bad transformer include a humming or "buzzing" sound coming from the Genie motor unit and your garage door opener not lifting the garage door Comes with full manufacturers warranty