The Genie 37954R.S Capacitor is an OEM replacement start capacitor rated at 70 microfarads (70 uF) and 200V, designed for select Genie garage door openers that use an AC motor. This component provides the phase shift and inrush current needed to start the motor under load, helping the door lift smoothly and reliably. Replacing a weak or failed start capacitor can resolve symptoms such as motor humming, hesitation at startup, or stalling during lift. It is a direct replacement part identified by its Genie part number (37954R.S), making it suitable for maintenance and repair of compatible residential Genie units when the parts diagram specifies a 70 uF, 200V capacitor.
Technical details include a capacitance of 70 uF and a voltage rating of 200V (use only where the opener’s service manual calls for these values). Installation typically involves disconnecting power, noting the existing wiring, swapping the capacitor into the factory holder, and reconnecting the leads as originally configured; no programming is required after replacement. For safety, ensure the opener is unplugged and handle the capacitor carefully, as it can retain a charge; if you are unsure, consult a qualified technician. For compatibility, match the part number 37954R.S and specifications to your opener’s model-specific parts list or service documentation, as not all Genie openers use the same capacitor type. This genuine Genie replacement suits buyers searching for a garage door opener start capacitor, 70 uF 200V capacitor, or Genie 37954R.S replacement part.