OEM Carrier Single Run Capacitor P291-1003 for Model GB1AAV048090AAJA

This is the factory-specified OEM single run capacitor (part number P291-1003) for the Carrier GB1AAV048090AAJA packaged gas/electric unit. A run capacitor provides the continuous phase-shifted electrical current needed to keep a single motor — typically the condenser fan or blower motor — running efficiently after startup. When this capacitor weakens or fails, you'll notice symptoms such as a humming motor that won't spin, sluggish motor startup, system short-cycling, or a complete no-start condition on the affected motor circuit.

• Specs: Single run capacitor | Factory-matched MFD rating | 370V or 440V rated (verify on unit data plate) | Round or oval case | OEM tolerance ±3% for precision motor protection
• OEM vs Generic: This is a genuine Carrier OEM part, manufactured to exact factory specifications. Generic capacitors often carry ±10% MFD tolerance, which increases motor operating temperature, accelerates winding wear, and can void equipment warranties — making OEM the smart long-term choice.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before handling any terminals (use an insulated resistor or discharge tool). Tools needed: 1/4" nut driver, needle-nose pliers, and a multimeter to confirm the old capacitor has failed. Photograph all wiring connections before disconnecting to ensure correct reinstallation.
• Warranty: Backed by a 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our climate-controlled parts warehouse.

Compatibility: Designed specifically for the Carrier GB1AAV048090AAJA packaged unit. Always cross-reference the MFD rating and voltage printed on your existing capacitor or the unit's data plate before ordering to confirm an exact match. Our parts specialists are available to verify fitment — reach out before you order if you have any questions. In stock and ready to ship today.