Heil Quaker ICP 1186257 Run Capacitor

The Heil Quaker ICP 1186257 Run Capacitor is a high-performance 35/5 MFD 440V dual run capacitor designed for demanding HVACR applications. Engineered to support both the compressor and the condenser fan motor, this round dual run capacitor serves as a reliable replacement for legacy part numbers 1172297 and 1172116. Built with a robust aluminum casing and non-PCB metallized polypropylene film, it is rated for 370/440VAC operation at 50/60Hz. This ICP 1186257 replacement ensures stable phase shift and motor torque, maintaining system efficiency in high-ambient environments. For contractors, the clearly labeled "C," "HERM," and "FAN" terminals streamline the HVAC capacitor replacement process, reducing field time. Whether you are servicing a 3.5-ton condenser or a specific ICP-branded heat pump, this 35+5 microfarad 440V capacitor provides the precise capacitance required to prevent motor overheating and premature component failure in residential and light commercial cooling systems.

Key Benefits:

• Dual-Purpose Engineering: Simultaneously manages a 35 MFD load for the compressor and a 5 MFD load for the fan motor.
• Broad Compatibility: Direct OEM replacement for Heil, Quaker, Comfortmaker, and Tempstar units utilizing the 1186257 part number.
• High Voltage Threshold: Rated for up to 440VAC, allowing it to safely replace 370V capacitors while offering superior dielectric strength.
• Field-Proven Reliability: Designed to operate within a temperature range of -40°C to +70°C with 10,000 AFC safety protection.

Common Questions:

Can I use a 440V capacitor if my original was 370V?
Yes. In HVAC applications, you can always upgrade to a higher voltage rating (e.g., using a 440V to replace a 370V), but you must never use a lower voltage than the original specification. The capacitance (35/5 MFD) must remain exact.

How do I identify which terminal is which during installation?
The terminals are stamped on the top of the capacitor: "HERM" connects to the compressor start wire, "FAN" connects to the condenser fan motor, and "C" is for the common line. "HERM" typically has three blades, while "C" usually has four.

Why is my capacitor bulging or leaking fluid?
Physical deformation or oil leakage indicates internal dielectric failure, often caused by age or excessive heat. A failed 1186257 capacitor will prevent the compressor from starting, often resulting in a distinct humming sound from the outdoor unit.

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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.