OEM Carrier Dual Run Capacitor & Start Capacitor Kit for Model PH10JA042000AHAA

This factory-matched OEM capacitor kit includes both the dual run capacitor (P291-4054RS) and the start capacitor (P281-8806) — the exact components specified for the Carrier PH10JA042000AHAA packaged heat pump unit. The dual run capacitor continuously supplies the electrical charge needed to keep the compressor and condenser fan motor running, while the start capacitor delivers the high-torque burst required to cycle the compressor on under load. When either component fails, symptoms include a distinct humming with no motor movement, a compressor that trips on thermal overload, or a system that short-cycles within the first few minutes of operation. Replacing both together is best practice — if one has failed, the other is under increased stress.

• Dual Run Capacitor Specs (P291-4054RS): 40+5 MFD | 440V rated | Round case | ±6% tolerance | 50/60 Hz | AFC 10,000 | Castor Oil protected | No PCB
• Start Capacitor Specs (P281-8806): 88–108 MFD | 330V rated | Oval case | 2.06" diameter | With bleed resistor | 50/60 Hz
• OEM vs Generic: These are genuine Carrier/Totaline factory-authorized parts, manufactured to exact OEM tolerances. Generic capacitors often carry ±10% MFD ratings, which accelerates motor wear, shortens compressor life, and can void equipment warranties. Always match the data plate specs exactly.
• Install Difficulty: 2/5 — Always discharge capacitors fully before handling — stored charge is dangerous. Tools needed: 1/4" nut driver, insulated needle-nose pliers, multimeter (capacitance setting). Photograph all wiring before disconnecting. If unsure, consult a licensed HVAC technician.
• Warranty: 1-year OEM manufacturer warranty. In-stock orders ship same business day from our warehouse.

Compatibility: Engineered as direct OEM replacements for the Carrier PH10JA042000AHAA packaged heat pump. Verify MFD, voltage, and physical dimensions against your unit's data plate before installing. Our fitment team is available to confirm compatibility before you order — no guesswork required.