York S1-025-42666-000 Control 320734-701 a run capacitor is required

a run capacitor is required for operation

as some older revisions may require minor adjustments to mounting or lead connections

or the system logging a "limit switch open" diagnostic flash code

or failure to initiate

this component remains the industry standard for monitoring HVAC transmitter outputs

York S1-025-42666-000 Control 320734-701 a run capacitor is requiredThe York S1 025 42666 000 Control, also identified by part number S1 ICM325A, is a high performance, single phase head pressure control designed for precise regulation in residential and commercial condensing units. Supporting a wide input range of 120 600V at 50 60Hz, this OEM level component is built for reliability in varying environmental conditions. For service technicians, this unit serves as a critical condenser fan speed controller, modulating