York S1-CAP4403035DR Run Capacitor

The York S1-CAP4403035DR is a heavy-duty dual run capacitor designed for high-performance residential and commercial York condensing units. This 35/3 MFD 440V component utilizes an oil-filled round dual run capacitor design to provide the precise reactive power needed for both the compressor and the fan motor. Rated for 440VAC, it is also backward compatible with 370V applications, offering superior dielectric strength and thermal stability in demanding outdoor environments. The Source 1 York replacement parts are engineered with high-grade metallized polypropylene film and include a pressure-sensitive interrupter for safety, ensuring the system maintains correct phase displacement. For technicians, this HVAC run capacitor features standard quarter-inch male quick-connect terminals clearly marked for Common, Hermetic, and Fan connections, facilitating efficient installation and troubleshooting. Its aluminum case construction provides effective heat dissipation and corrosion resistance, essential for maintaining peak motor efficiency and extending the service life of York AC parts.

• Dual-Action Performance: Simultaneously regulates power for both the compressor (35 MFD) and condenser fan motor (3 MFD).
• High Voltage Threshold: Rated for up to 440VAC to handle voltage spikes and harsh electrical conditions effectively.
• Reliable Construction: Aluminum-housed, oil-filled design ensures consistent temperature regulation and dielectric stability.
• OEM Precision: Guaranteed compatibility with Source 1 and York specifications to ensure optimal motor torque and amperage.
• Safety Standards: Manufactured in accordance with UL 810 for pressure-sensitive internal protection.

Can I use a 440V capacitor if my original was 370V?
Yes. A 440V rating indicates a higher insulation capacity and can safely replace a 370V unit, provided the MFD ratings (35/3) match exactly.

What are the symptoms of a failing S1-CAP4403035DR?
Common signs include the compressor "hard starting," the fan motor humming without spinning, or physical bulging/leaking of the capacitor casing.

Why is the 35/3 MFD rating critical?
The microfarad (MFD) rating determines the phase shift for the motor windings. Using an incorrect capacitance can lead to overheating, increased energy consumption, and premature motor failure.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.