OEM Carrier Dual Run Capacitor & Start Capacitor Kit for Model PH12NA030000AAAA

This OEM-matched capacitor kit includes both the P291-4573RS Dual Run Capacitor and P281-8806 Start Capacitor — the factory-specified pair for the Carrier PH12NA030000AAAA heat pump. Together, these capacitors store and release the electrical charge required to start and sustain the compressor and condenser fan motor. When either fails, you'll experience symptoms such as a humming condenser that won't start, a compressor that short-cycles within minutes, or a complete failure to cool or heat. Replacing both at the same time is standard field practice — if one has failed, the other is under equal stress.

• Dual Run Capacitor Specs (P291-4573RS): 45 + 7.5 MFD (microfarad) | 370V rated | Round case | GE Genteq manufactured | Factory ±3% tolerance — powers both the compressor and condenser fan motor simultaneously.
• Start Capacitor Specs (P281-8806): 88–108 MFD | 330V rated | Includes integrated bleed resistor | Provides the high-torque starting boost the compressor needs under load — critical in hard-start or high-ambient-temperature conditions.
• OEM vs Generic: OEM capacitors are manufactured to Carrier's exact factory tolerances and reliability parameters. Generic units often carry ±10% MFD variance, accelerating motor and compressor wear over time. Always match MFD and voltage ratings exactly — never substitute a lower voltage rating.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before touching any terminals (use an insulated resistor or discharge tool). Tools needed: 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Swap one capacitor at a time to avoid miswiring. If in doubt, call a licensed HVAC technician.
• Warranty & Shipping: 1-year OEM warranty. Ships same business day from our warehouse — order before 3PM for same-day dispatch.

Compatibility: This kit is factory-matched for the Carrier PH12NA030000AAAA heat pump. Always verify the MFD and voltage ratings on your unit's data plate before ordering. Our team is available to confirm fitment — contact us before you order if you have any questions.