MARS 11054 Start Capacitor 319847-401 While some defrost sensors share

While some defrost sensors share similar footprints

Always cross-reference the model and serial number from the indoor air handler nameplate

Failure is often caused by moisture buildup in the sensing lines

Field techs often use this as a direct swap for York S1-02625511000 to restore factory performance and prevent heat transfer loss in demanding high-ambient conditions

MARS 11054 Start Capacitor 319847-401 While some defrost sensors shareThe MARS 11054 Start Capacitor is a heavy duty 270 324 MFD 250V component engineered for high torque motor starting in demanding HVACR applications. As a veteran preferred round motor start capacitor, it features a hermetically sealed black Bakelite case that provides a permanent barrier against moisture, oil, and industrial debris. Designed for 220 250Vac systems, this unit is rated for up to 15 starts per hour, making it an ideal choice for