Carrier P291-1503R Run Capacitor

The Carrier P291-1503R is a heavy-duty 15 MFD 370V round run capacitor engineered for high-reliability performance in residential and commercial HVACR systems. Designed to stabilize current flow to condenser fan motors and small compressors, this Type II metallized polypropylene film capacitor features a low-loss dielectric and a rugged aluminum casing for optimal heat dissipation. Rated for both 370 VAC and 440 VAC applications, it provides essential phase-shift torque for induction motors while meeting EIA-456-A compliance standards for long-cycle life. Field technicians prefer this oiled filled run capacitor for its high-pressure safety disconnect mechanism, ensuring the circuit opens safely in the event of internal failure. Whether performing a routine preventative maintenance check or a critical system repair, utilizing a genuine Carrier Totaline replacement part ensures the capacitance tolerance remains within the ±5% specification required for efficient motor operation and thermal protection.

• Enhanced Thermal Stability: Specifically designed to handle the high ambient temperatures found in outdoor condensing units.
• Universal Voltage Compatibility: Rated for 370V, making it a versatile service truck stock item for various tonnage systems.
• Physical Durability: Leak-proof aluminum construction with 1/4 inch quick-connect terminals for fast, secure wiring.
• Safety Compliance: UL/CSA listed with a built-in internal pressure interrupter to prevent casing rupture.

Can I use a 15 MFD 440V capacitor to replace this 370V model?
Yes, a higher voltage rating is acceptable as it indicates a higher insulation breakdown point, but the 15 microfarad (MFD) rating must remain identical to maintain proper motor torque.

What are the signs of a failing P291-1503R capacitor?
Look for physical bulging at the top of the canister, oil leakage, or an out-of-tolerance MFD reading during a multimeter bench test. A failing unit often causes the fan motor to hum or cycle on thermal overload.

Why is this unit marked as Non-Cancelable/Non-Returnable?
Electrical components like this run capacitor are sensitive to installation errors and line surges. To ensure every customer receives a factory-calibrated part that hasn't been pre-installed or damaged, these items are final sale.

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.