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OEM Carrier Single Run Capacitor P291-1003 for FC4BNF036008ABAA
Carrier

OEM Carrier Single Run Capacitor P291-1003 for FC4BNF036008ABAA

SKU: CARRIE-FC4BNF036008ABAA-CAPACITOR-P291-1003 Brand: Carrier

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Texas CMBL #19328542014
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OEM Carrier Single Run Capacitor P291-1003 for Model FC4BNF036008ABAA

This OEM single run capacitor (part number P291-1003) is the factory-specified replacement for the Carrier FC4BNF036008ABAA fan coil unit. A run capacitor maintains the phase-shifted electrical current needed to keep the blower or fan motor running smoothly at full efficiency. When this capacitor degrades or fails, you'll notice symptoms such as a humming motor that won't spin up, intermittent shutdowns, weak airflow, or a complete no-start condition on the motor circuit. Replacing a faulty run capacitor is one of the most cost-effective repairs in HVAC service.

  • Specs: Single run capacitor | Factory-matched MFD rating | 370V or 440V rated (verify on unit data plate) | Cylindrical case design | ±5% OEM tolerance for precise motor protection
  • OEM vs Generic: This is a genuine OEM Carrier capacitor built to exact factory tolerances. Generic aftermarket capacitors often carry a ±10% MFD variance, which can cause premature motor bearing wear, increased amp draw, and shortened equipment life — costing more in the long run.
  • Install Difficulty: 2/5 — Always discharge the capacitor fully before handling using an insulated resistor or discharge tool. Tools needed: 1/4" nut driver, needle-nose pliers, and a multimeter to verify capacitance after installation. Photograph all wiring connections before removing the old capacitor.
  • Warranty: Backed by a 1-year OEM factory warranty. Orders placed before our daily cutoff ship same business day from our stocked warehouse — no waiting on back-orders.

Compatibility: Designed specifically for the Carrier FC4BNF036008ABAA fan coil 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 before you complete your purchase — don't guess when precision matters.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $75
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Capacitor fit my Carrier FC4BNF036008ABAA?
Yes. This is the factory-specified OEM capacitor for the Carrier FC4BNF036008ABAA. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the capacitor on my Carrier FC4BNF036008ABAA?
Difficulty: Easy (20–30 min)
Step 1: Turn off power at breaker. Step 2: Open condensing unit panel. Step 3: Photograph the old capacitor wiring (Common/Herm/Fan). Step 4: Discharge old capacitor with insulated screwdriver. Step 5: Disconnect and remove old capacitor. Step 6: Mount new capacitor, reconnect wires to matching terminals. Step 7: Close panel, restore power, test. Tools: screwdriver, needle-nose pliers.
My AC hums but won’t start. What part do I need?
An AC that hums but won’t start is the classic symptom of a failed capacitor. The capacitor provides the electrical boost to start the compressor. When it fails, you hear humming but the motor can’t overcome inertia. Other symptoms: fan spinning slowly, AC cycling on/off rapidly, or a visibly swollen capacitor. Fix: replace capacitor ($15–$80 DIY, 30 min).
Is this capacitor compatible with Bryant or Payne too?
Many Carrier parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Carrier capacitor?
OEM strongly recommended. OEM capacitors have ±6% MFD tolerance vs aftermarket ±10%. The looser tolerance causes motor winding stress, higher temps, and shorter compressor life. Price difference is only $10–$20 — OEM is the clear value choice.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
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