Same-day shipping on orders before 3PM CST · 15,000+ OEM Parts In Stock · Carrier · Bryant · ICP · Heil · Tempstar
Track Order | 1-800-NHP-HVAC | Trade Accounts

Menu

Home Shop All Account Cart
Home / OEM Carrier Run Capacitor Replacement...

IMAGE COMING SOON

Carrier

OEM Carrier Run Capacitor Replacement for Model FA4CNC018005AAAA

SKU: carrier-run-capacitor-fa4cnc018005aaaa Brand: Carrier
$39.95

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

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

OEM Carrier Run Capacitor Replacement for Model FA4CNC018005AAAA

Keep your Carrier system starting strong with this genuine OEM run capacitor, designed for the FA4CNC018005AAAA air handling unit. The run capacitor stores and releases the electrical charge that gives your compressor and fan motor the torque to start and the steady current to run efficiently. When a capacitor weakens, you'll often hear humming, notice hard starts, or find the unit tripping on overload, and a fresh OEM part corrects all of these issues. Built to factory microfarad and voltage ratings, this capacitor fits the FA4CNC018005AAAA control box exactly with no adapters needed. A trained technician can complete the swap in roughly 15-20 minutes after disconnecting power and discharging the old capacitor for safety. Selecting the genuine Carrier component over a universal aftermarket part ensures correct tolerances, longer life, and warranty protection. Place your order before 3PM CST and it ships same-day from our US warehouse, getting your equipment cooling again quickly. Shop confidently at NationalHVACParts.com.

Compatibility

This part is compatible with Carrier model FA4CNC018005AAAA.

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 FA4CNC018005AAAA?
Yes. This is the factory-specified OEM run capacitor for the Carrier Model FA4CNC018005AAAA. 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 FA4CNC018005AAAA?
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.
Home Shop Search Account Cart