OEM Carrier Dual Run Capacitor 35+5 MFD 370V for Model PH13NR01800GAFAA

This is the factory-specified OEM dual run capacitor (part number P291-3553RS) for the Carrier PH13NR01800GAFAA heat pump condensing unit, paired with the OEM start capacitor (P281-8806, 88–108 MFD 330V). The dual run capacitor stores and releases the electrical charge needed to start and sustain both the compressor and condenser fan motor simultaneously. When it degrades or fails, the most common symptoms are a loud humming from the condenser cabinet with no motor movement, the compressor short-cycling off on thermal overload, or the condenser fan spinning slowly or not at all. A failed start capacitor will prevent the compressor from starting entirely — the unit will attempt to energize and immediately trip the breaker or lock out.

• Dual Run Capacitor Specs (P291-3553RS): 35+5 MFD (microfarad) | 370V AC rated | Round case | HERM–C–FAN terminal configuration | ±3% OEM factory tolerance | Manufactured by GE/Genteq for Carrier
• Start Capacitor Specs (P281-8806): 88–108 MFD | 330V AC rated | Includes integrated bleed resistor | Factory-matched for Carrier compressor soft-start assistance
• OEM vs Generic: OEM capacitors from Carrier's authorized supplier (GE/Genteq) are held to tighter MFD tolerance (±3%) than most aftermarket units (±10%). Loose tolerance on a run capacitor accelerates compressor winding wear and shortens fan motor bearing life — costing far more than the capacitor itself.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before touching terminals (use a 20kΩ resistor or insulated screwdriver across terminals). Tools needed: 1/4" nut driver, needle-nose pliers, multimeter with capacitance mode. Photograph all wiring connections before disconnecting. The three terminals on the dual run cap are labeled HERM (compressor), C (common), and FAN.
• Warranty: 1-year OEM factory warranty. Ships same business day from our climate-controlled warehouse.

Compatibility: Engineered as a direct OEM replacement for Carrier model PH13NR01800GAFAA. Also cross-references to legacy Carrier part numbers HC98JA036D, HC98CA036, HV98CA035, and 97F9834. Verify the MFD rating and voltage on your unit's data plate before ordering. Have a question about fitment? Our HVAC parts specialists verify compatibility before every order — contact us today and ship the same business day.