OEM Carrier Dual Run Capacitor & Start Capacitor for Model HA1BJX030000ABAA

This OEM-matched capacitor set includes the P291-3553RS Dual Run Capacitor and the P281-8806 Start Capacitor, factory-specified replacements for the Carrier HA1BJX030000ABAA air handler or condenser system. The dual run capacitor sustains continuous operation of both the compressor and condenser fan motor, while the start capacitor delivers the extra torque burst needed to bring the compressor up to speed. When either component fails, symptoms include a loud hum with no motor movement, the system tripping on thermal overload, hard-start faults, or the unit short-cycling within the first few minutes of operation. Replacing both together is best practice — a weakened start capacitor accelerates wear on a healthy dual run capacitor and vice versa.

• Specs: P291-3553RS Dual Run Capacitor — round case, 370V/440V rated, factory-matched MFD tolerance ±3% | P281-8806 Start Capacitor — high-capacitance boost, matched to Carrier HA1BJX030000ABAA compressor start circuit
• OEM vs Generic: OEM capacitors are manufactured to exact Carrier factory tolerances. Aftermarket units commonly run ±10% MFD deviation, which shortens compressor and fan motor lifespan and can void equipment warranties.
• Install Difficulty: 2/5 — Always disconnect power and discharge the capacitor fully before handling. Tools needed: 1/4" nut driver, needle-nose pliers, insulated screwdriver, multimeter with capacitance setting. Photograph all terminal wiring before removal.
• Warranty: 1-year OEM factory warranty on both components. Orders placed before cutoff ship same business day from our stocked warehouse.

Compatibility: Designed as direct OEM replacements for Carrier model HA1BJX030000ABAA. Always verify MFD rating, voltage, and terminal configuration against your unit's data plate before installing. Not sure if these are the right parts? Our fitment team is available to confirm compatibility before you order — same-day shipping on all in-stock capacitors.