Capacitors install inside the garage door operator control box and store electrical energy to turn on the opener upon startup. When a LiftMaster/Chamberlain garage door operator is activated, more power than supplied by the power circuit is required. Capacitors store the necessary electrical energy to provide bursts of power to start the operator. Capacitors are important components required for an operator to turn on and work properly. If an operator suddenly is having trouble turning on because of lack of power, the capacitor likely needs replaced. Capacitor's by LiftMaster are easy to install with wires that easily clamp to metal connections. Look through this section of LiftMaster garage door opener parts to find the right capacitor for your operator.
Not sure which one is right for your operator? Looking for different opener repair and replacement parts for LiftMaster garage door openers? Contact Our Sales and Support Team with questions or concerns.