OEM Carrier Dual Run Capacitor & Start Capacitor Kit for Model PH10JA042000AAAA

This OEM-matched capacitor kit includes both the dual run capacitor (P291-4054RS) and the start capacitor (P281-8806) factory-specified for the Carrier PH10JA042000AAAA heat pump system. Together, these capacitors deliver the electrical charge required to start and sustain the compressor and condenser fan motor under load. When either capacitor degrades or fails, you'll commonly experience a low hum with no motor movement, hard-start tripping, intermittent shutdowns, or the unit drawing locked-rotor amperage — all of which risk permanent compressor damage if left unaddressed.

• Included Parts: P291-4054RS OEM Dual Run Capacitor (powers both compressor + condenser fan motor) | P281-8806 OEM Start Capacitor (provides hard-start boost during compressor startup)
• OEM vs Generic: Factory OEM capacitors are manufactured to exact MFD tolerance (±3%), matching Carrier's engineering spec for the PH10JA042000AAAA. Generic aftermarket capacitors frequently deviate ±10% or more, causing motor stress, reduced efficiency, and shortened compressor life.
• Install Difficulty: 3/5 — Always discharge capacitors fully before handling (use a 20kΩ resistor or insulated screwdriver across terminals). Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph all wiring connections before removal. Confirm MFD and voltage ratings on your unit's data plate prior to installation.
• Warranty & Shipping: 1-year OEM factory warranty on both components. Orders placed before cutoff ship same business day from our climate-controlled parts warehouse.

Compatibility: Engineered as a direct OEM replacement for Carrier model PH10JA042000AAAA heat pump systems. Always cross-reference the capacitor MFD, voltage rating, and terminal configuration on your existing unit's data plate before installing. Need fitment confirmation? Our HVAC parts specialists verify compatibility before your order ships — no guesswork.