Nordyne 01-0081 Run Capacitor

The Nordyne 01-0081 Run Capacitor is a standard-grade 25/5 microfarad (MFD) component designed to maintain peak performance in residential HVAC systems. Built for dual-run applications, this 370V round dual run capacitor provides the necessary phase shift to support both the start and run cycles of the compressor and condenser fan motor simultaneously. Engineered with high-grade metallized polypropylene film and housed in a protective steel case, this unit is a direct replacement for failing 25+5 uF capacitors that cause hard starts or motor overheating.

For service technicians and contractors, the 01-0081 offers a compact round form factor with 1/4-inch quick-connect quad-blade terminals for efficient field installation. It is rated for 50/60 Hz operation and can withstand ambient operating temperatures from -40°C to +70°C. This HVAC motor run capacitor is compatible with a wide range of brands under the Nortek family, including Intertherm, Miller, and Frigidaire units. When troubleshooting, verify the capacitance values and ensure the 370-volt rating meets or exceeds the original OEM requirements before finishing the swap.

• Dual-Value Reliability: Simultaneously powers both the 'Herm' (compressor) and 'Fan' circuits with precise 25/5 uF tolerance.
• Thermal Stability: Non-PCB oil-filled design ensures effective heat dissipation during continuous high-load operations.
• Universal Round Design: The 2-inch diameter matches industry-standard mounting brackets for seamless compatibility.
• Enhanced Safety: Includes an internal pressure-sensitive interrupter designed to disconnect the circuit if the capacitor fails or expands.

Can I use a 440V capacitor to replace this 370V model?
Yes, you can substitute a 370V capacitor with a 440V unit as long as the MFD ratings (25/5) match exactly. However, you cannot use a lower voltage capacitor (like a 240V) to replace this 370V unit.

What are the signs of a failing 01-0081?
Common symptoms include a humming sound from the compressor, the fan failing to start, or visible physical defects such as a bulged top or leaking dielectric oil.

Which terminals are which on this dual run capacitor?
The terminal marked 'C' is Common, 'HERM' is for the compressor lead, and 'FAN' is for the condenser fan motor lead. Always discharge the capacitor before handling the wires.

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.