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OEM Carrier Single Run Capacitor P291-1003 for FC4BNF042000AEAA
Carrier

OEM Carrier Single Run Capacitor P291-1003 for FC4BNF042000AEAA

SKU: CARRIE-FC4BNF042000AEAA-CAPACITOR-P291-1003 Brand: Carrier

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Single Run Capacitor P291-1003 for Model FC4BNF042000AEAA

This OEM single run capacitor (part number P291-1003) is the factory-specified replacement for the Carrier FC4BNF042000AEAA fan coil unit. A single run capacitor maintains a continuous phase shift to keep the blower motor running at peak efficiency once it has started. When the capacitor degrades or fails, the motor may hum without turning, run sluggishly, overheat, or the system may short-cycle — all signs it is time for a direct OEM replacement.

  • Specs: Single run capacitor | Factory-matched MFD rating | 370V/440V rated | Oval or round case per OEM specification | ±5% tolerance for precise motor performance
  • OEM vs Generic: This is a genuine OEM Carrier capacitor built to exact factory tolerances. Generic aftermarket capacitors frequently fall outside ±10% MFD accuracy, placing undue stress on the blower motor windings and shortening overall motor life — a risk not worth taking on a fan coil investment.
  • Install Difficulty: 2/5 — Always discharge the capacitor fully before handling any terminals. Recommended tools: 1/4" nut driver, insulated needle-nose pliers, and a multimeter capable of MFD readings. Photograph all wiring connections before disconnecting to ensure correct reinstallation.
  • Warranty & Shipping: Backed by a 1-year OEM factory warranty. Orders placed by cutoff ship the same business day from our climate-controlled parts warehouse.

Compatibility: Designed and factory-matched for the Carrier FC4BNF042000AEAA fan coil unit. Always verify the MFD rating and voltage printed on your existing capacitor's label or the unit's data plate before ordering to confirm an exact match. Our parts specialists are available to verify fitment prior to purchase — do not hesitate to reach out. Order today and get your system back to full performance fast.

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 FC4BNF042000AEAA?
Yes. This is the factory-specified OEM capacitor for the Carrier FC4BNF042000AEAA. 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 FC4BNF042000AEAA?
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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