Lennox 22W79 Run Capacitor

The Lennox 22W79 Run Capacitor is a high-performance 7.5 MFD 370V oval run capacitor designed for precise electrical phase shifting in residential and commercial HVAC units. As a direct OEM 7.5 microfarad capacitor replacement, this component ensures the induction motor maintains the necessary torque for continuous operation, reducing current draw and heat buildup. This specific HVAC run capacitor is identical to part number 22W7901 and serves as a critical Lennox replacement part for blower motors and condenser fans. Field technicians frequently utilize the Lennox 22W79 to restore factory-spec efficiency in single-stage cooling systems, furnaces, and heat pumps. Its 370 VAC rating and robust oval housing allow for seamless integration into tight control boxes while providing stable voltage regulation across 50/60Hz frequencies. Choosing this genuine Lennox capacitor eliminates common compatibility issues associated with universal alternatives, protecting the motor windings from premature failure.

Key Benefits

• Technical Precision: Rated at 7.5 MFD with a 370 VAC tolerance to meet exact factory requirements.
• Direct OEM Integration: Replaces Lennox 22W7901 and 100600-02, ensuring terminal alignment and correct mounting.
• Extended Motor Life: Provides a consistent electrical boost to keep blower and fan motors running cool and efficient.
• Broad Compatibility: Fits popular Lennox furnace and AC series including G24M3, G61MPV, and G26Q3 units.
• Industrial Build: Engineered to withstand the electrical stress of high-cycle HVAC environments.

Common Questions

Can I use a 440V capacitor to replace the Lennox 22W79?
Yes, a 440V rated capacitor can safely replace a 370V unit as long as the capacitance (7.5 MFD) and physical dimensions (oval) match. The voltage rating indicates the maximum surge the capacitor can handle.

How do I know if my 7.5 MFD capacitor has failed?
Common symptoms include a humming fan motor that won't spin, a "bulged" or leaking capacitor casing, or if the capacitance reading drops below the +/- 5% or 10% tolerance range when tested with a multimeter.

Is the 22W79 compatible with dual-capacitor systems?
The 22W79 is a single-section run capacitor. If your system requires a dual capacitor (e.g., 35/5 or 45/5 MFD), this unit will only serve as a dedicated replacement for a single motor circuit, not the entire dual-run requirement.

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.