OEM Carrier Single Run Capacitor P291-1003 for Model PY1PEA048120AFBA

This OEM single run capacitor (part number P291-1003) is the factory-specified replacement for the Carrier PY1PEA048120AFBA packaged heat pump unit. A single run capacitor maintains a consistent phase-shifted electrical current to keep either the compressor or the fan motor running smoothly after startup. When this capacitor weakens or fails, you'll typically notice symptoms such as a humming compressor that won't start, frequent short-cycling, elevated amp draws, or a complete failure to cool or heat — all classic signs of capacitor degradation.

• Specs: Single run capacitor | Factory-matched MFD rating and voltage | Oval or round case (verify against unit data plate) | Manufactured to OEM ±5% tolerance standards
• OEM vs Generic: This is a genuine OEM Carrier part. Generic capacitors commonly carry ±10% MFD tolerance, which causes premature motor and compressor wear. OEM ensures the exact electrical characteristics Carrier engineered into the PY1PEA048120AFBA.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before handling. Tools needed: 1/4" nut driver, insulated needle-nose pliers, and a multimeter to confirm discharge. Photograph all wiring connections before removal. This is a common DIY-friendly repair for experienced homeowners or any certified HVAC technician.
• Warranty: 1-year OEM factory warranty against defects. Orders ship same business day from our warehouse when placed before 3 PM local time.

Compatibility: Engineered for the Carrier PY1PEA048120AFBA packaged heat pump. Always cross-reference the MFD rating and voltage printed on your existing capacitor's label and the unit's data plate before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you buy — just reach out before placing your order.