Lennox 83W76 Run Capacitor

When you're out on a service call and find a dead blower motor or a struggling condenser fan, checking the capacitance is your first move. The Lennox 83W76 Run Capacitor is a reliable 12.5 MFD 370V component designed for precision in residential and light commercial HVAC applications. Built as a direct-fit 12.5 microfarad 370Vac oval run capacitor, it provides the necessary phase shift to keep single-phase motors running at peak efficiency. This HVAC replacement part is the official OEM successor for legacy numbers like 33H41 and 53H05, ensuring you don't have to struggle with mounting brackets or terminal alignment in the field. With a 370 VAC rating and a durable metal oil-filled casing, this oval motor capacitor is engineered to withstand high-duty cycles and operating temperatures from -40°C to 70°C. Whether you're troubleshooting a Lennox furnace or an outdoor unit, having this 83W76 capacitor in your van ensures a fast, professional repair that matches original equipment specifications.

• Direct OEM Replacement: Seamlessly replaces Lennox 33H41, 53H05, and 100600-10, maintaining system integrity and air flow.
• High-Stability Performance: Rated for a 12.5 MFD capacitance with a tight ±5% tolerance to ensure motor torque remains consistent.
• Rugged Construction: Features 1/4 inch male quick-connect terminals and a non-PCB, oil-filled metal housing for superior heat dissipation.
• Compact Oval Profile: Designed to fit into standard capacitor straps and tight electrical compartments without modification.
• Broad Compatibility: Suitable for a wide range of Lennox blower motors and condenser fan motors requiring 12.5 uF at 370 Volts.

Can I use a 440V capacitor to replace this 370V model?
Yes, in the field, you can always up-rate the voltage. A 440V capacitor will handle the 370Vac requirement easily and often runs cooler. However, you must stick to the 12.5 MFD rating; never deviate from the microfarad spec of the motor.

How do I know if this capacitor has failed?
Look for physical signs like a "bulged" or mushroomed top, which indicates the internal pressure interrupter has tripped. More accurately, use your multimeter to test the microfarad output; if the reading is more than 5% below 12.5, it’s time for a replacement.

What motors use a 12.5 MFD run capacitor?
This size is common in 1/3 HP or 1/2 HP permanent split capacitor (PSC) blower motors and specific condenser fans. Always verify the motor nameplate before installation to ensure a match.

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.