OEM Carrier Single Run Capacitor 10 MFD 370V for Model PH1REA036000AAWA

This OEM single run capacitor (part number P291-1003) is the factory-specified replacement for the Carrier PH1REA036000AAWA heat pump system. The run capacitor provides a continuous phase-shifted electrical charge that keeps the blower or condenser fan motor spinning at full torque after startup. When it degrades or fails, symptoms include a motor that hums but won't spin, sluggish motor startup, intermittent short-cycling, or a system that trips on high-pressure lockout due to reduced airflow from a lagging fan.

• Specs: 10 MFD (microfarad) | 370V rated | Oval case | ±5% capacitance tolerance | 50/60 Hz | Non-PCB, RoHS compliant
• OEM vs Generic: This is a genuine Carrier/Totaline OEM capacitor matched to factory tolerances. Generic capacitors often carry a wider ±10% tolerance, which causes motors to draw excess amperage, shortening both motor and compressor life.
• Install difficulty: 2/5 — Always discharge the capacitor before handling by shorting terminals through a 20kΩ resistor or insulated screwdriver. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph wiring before disconnecting. Confirm MFD and voltage ratings match your unit's data plate.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Designed for Carrier model PH1REA036000AAWA. Note: P291-1003 has been superseded by P291-1004 (440V-rated upgrade); both are electrically compatible as the higher voltage rating is an improvement, not a restriction. Always verify MFD rating on your unit's data plate before ordering. Have a fitment question? Our HVAC parts specialists verify compatibility before you buy — contact us today and get your system back online fast.