OEM Carrier Dual Run & Start Capacitor Kit — P291-3553RS + P281-8806 for Model PH4RNG024000BAAA

This factory-matched OEM capacitor kit contains both the dual run capacitor (P291-3553RS) and the start capacitor (P281-8806) specified for the Carrier PH4RNG024000BAAA packaged heat pump unit. The dual run capacitor simultaneously energizes the compressor (HERM terminal) and the condenser fan motor (FAN terminal), while the start capacitor delivers the extra torque burst the compressor needs on each startup cycle. When either capacitor degrades, symptoms include a hard-starting compressor, a humming condenser fan that won't spin up, or a unit that trips on high-pressure lockout within the first minute of operation.

• Dual Run Capacitor Specs (P291-3553RS): 35 + 5 MFD | 370 VAC | Round case | Terminals: HERM / C / FAN | OEM manufacturer: GE/Genteq
• Start Capacitor Specs (P281-8806): 88–108 MFD | 330 VAC | Integrated bleed resistor | OEM-sourced by Carrier/Totaline
• OEM vs Generic: OEM capacitors are built to exact factory MFD tolerances (±5%), protecting compressor windings and fan motor bearings. Generic units often run ±10–15% MFD, accelerating wear and shortening equipment life — especially critical on hard-starting packaged units.
• Install difficulty: 2/5 — Always discharge the run capacitor before touching terminals. Tools needed: 1/4" and 5/16" nut drivers, insulated needle-nose pliers, multimeter. Photograph all wiring before disconnecting. The start capacitor mounts in a dedicated bracket near the compressor contactor.
• Warranty: 1-year OEM factory warranty on both capacitors. Ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PH4RNG024000BAAA packaged heat pump. Verify capacitor ratings on your unit's data plate before installation — MFD and voltage must match exactly. The run capacitor voltage may be upgraded to 440V if a direct 370V replacement is unavailable, but MFD values must remain identical. Have questions about fitment? Our HVAC parts specialists verify compatibility before you order — reach out before you buy.