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OEM Carrier Run Capacitor P291-3543 for Model FB4ANF030008AFAA

SKU: carrier-run-capacitor-fb4anf030008afaa Brand: Carrier
$37.49

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

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OEM Carrier Run Capacitor P291-3543 for Model FB4ANF030008AFAA

This OEM Carrier run capacitor (P291-3543) supplies the consistent electrical charge that keeps the blower motor in your Carrier FB4ANF030008AFAA fan coil running smoothly. By maintaining proper torque, it prevents hard starts, overheating, and the early motor failure caused by a degraded capacitor. Common signs of a bad capacitor include a humming blower that won't spin, weak airflow, or a breaker that keeps tripping. Manufactured to factory specifications, this capacitor is a precise match for the original part in your FB4ANF030008AFAA, ensuring reliable, long-term performance. Installation is fast for a trained technician — generally 20-30 minutes to discharge the failed capacitor, mark wire positions, and install the new one. Electrical service should always be handled by a licensed HVAC professional. Genuine Carrier components protect your equipment warranty and deliver dependable operation. This capacitor is in stock and ready to ship. Order before 3PM CST and it ships the same day, getting your air handler back online without delay.

Compatibility

This part is compatible with Carrier model FB4ANF030008AFAA.

Shipping

Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.

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 support@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Run Capacitor fit my Carrier Model FB4ANF030008AFAA?
Yes. This is the factory-specified OEM run capacitor for the Carrier Model FB4ANF030008AFAA. 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 run capacitor on my Carrier Model FB4ANF030008AFAA?
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 run 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 run 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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