OEM Carrier Dual Run Capacitor 35+5 MFD & Single Run Capacitor 15 MFD 370V for Model PH1PNA030000ABBA

This listing covers the two factory-specified OEM capacitors for the Carrier PH1PNA030000ABBA package heat pump unit: the P291-3553 Dual Run Capacitor (35+5 MFD, 370V) and the P291-1503 Single Run Capacitor (15 MFD, 370V). The dual run capacitor stores and delivers the electrical charge needed to start and sustain both the compressor and the condenser fan motor simultaneously. The single run capacitor supports an additional motor circuit. When either fails, you may notice humming with no motor start, the unit short-cycling within minutes, or a complete loss of cooling or heating — classic signs of capacitor failure in packaged HVAC systems.

• Dual Run Capacitor (P291-3553) Specs: 35+5 MFD (microfarad) | 370V rated | Oval case | Terminals: HERM – C – FAN | Factory ±3% tolerance | RoHS Compliant | UL Approved
• Single Run Capacitor (P291-1503) Specs: 15 MFD | 370V rated | Oval case | Non-PCB dielectric fluid | UL Approved current interrupter | Multiple electrical terminals
• OEM vs Generic: These are Carrier/Totaline factory-authorized OEM capacitors, precision-matched to the PH1PNA030000ABBA's electrical specifications. Generic capacitors often carry ±10% MFD tolerance, which accelerates compressor and motor wear and can void equipment warranties. OEM units are 100% electrically tested before leaving the factory.
• Install difficulty: 2/5 — Always discharge the capacitor fully before touching terminals — a charged capacitor can deliver a dangerous shock. Tools needed: 1/4" nut driver, needle-nose pliers, and a multimeter (to verify discharge and confirm MFD before install). Photograph all wire connections before removal. Replace like-for-like: match MFD rating exactly and use same or higher voltage rating.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse.

Compatibility: These capacitors are the OEM-specified replacements for the Carrier PH1PNA030000ABBA packaged heat pump unit. Always verify the MFD and voltage ratings against your unit's data plate before ordering. Note that P291-3553 has been superseded by P291-3554, and P291-1503 has been superseded by P291-1504 — both successors carry identical electrical specifications and are fully interchangeable. Have a fitment question? Our HVAC parts specialists verify compatibility before you order — contact us today and we'll ship your part the same day.