The Linear 232168 3/4 HP Capacitor is an OEM replacement motor capacitor engineered for select Linear and Nortek Security & Control AC-motor garage door openers rated at 3/4 horsepower. This component provides the phase shift needed to deliver high starting torque, helping the opener motor start smoothly and run reliably. It is typically mounted inside the opener head and is used to resolve symptoms such as motor humming, stalling, or intermittent operation that can occur when a capacitor has degraded. As a direct replacement part identified by Linear part number 232168, it is intended for residential or light commercial garage door operator systems that specifically call for this part in their service manual or parts diagram.
Installation should be performed with power disconnected and only after confirming compatibility by referencing the opener’s model documentation for part 232168. Before swapping, note existing wire positions; capacitors can retain a charge, so proper discharge procedures and safety precautions are essential. This garage door opener capacitor is suited for AC-motor operators; DC motor models do not use a start/run capacitor. For best results and long-term reliability, match the part number on the existing component or the official Linear parts list, ensuring you are using the correct replacement capacitor for your 3/4 HP Linear garage door opener.