The most common causes are low line voltage

terminals 1 and 3 are for the 24V coil

Can this relay be used with a start capacitor

Common Questions What does the inducer cooling fan blade do

including the FBF

MARS 12764 Run Capacitor The most common causes areThe MARS 12764 is a professional grade 30 5 mfd 370V dual run capacitor engineered for continuous duty in residential and light commercial condensing units. This round motor run capacitor provides the precise phase shift required to optimize the torque and efficiency of both the compressor (30 microfarad) and the fan motor (5 microfarad). Built with a durable aluminum case and featuring a non PCB oil filled design, this component ensures stable