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OEM Carrier Contactor C48A503551 Condenser Replacement Part HVAC

SKU: carrier-contactor-c48a503551 Brand: Carrier
$39.95

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

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OEM Carrier Contactor C48A503551 Condenser Replacement Part HVAC

The OEM Carrier contactor (C48A503551) is the genuine factory switch that delivers power to your condensing unit's compressor and fan motor during each cooling cycle. Manufactured to exact Carrier specifications, it ensures clean contact closure, stable coil pull-in, and rugged performance under the high electrical loads HVAC systems place on it. Matched specifically to Carrier model C48A503551, it installs with a precise electrical and mechanical fit and no need for modification. When a contactor fails you'll notice buzzing, intermittent cooling, or a unit that refuses to start—this exact replacement resolves those issues and restores reliable operation. Installation difficulty is moderate: shut off power, label and transfer the existing wires, fasten the new contactor in place, and restore power. A trained technician generally completes the swap in 20–30 minutes with common hand tools. Genuine OEM parts preserve compatibility and protect your compressor, unlike cheap universal substitutes prone to early failure. Order before 3PM CST for same-day shipping and bring your Carrier cooling system back to full, trustworthy performance without delay.

Compatibility

This part is compatible with Carrier model C48A503551.

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 Contactor fit my Carrier OEM Carrier Contactor C48A503551 Condenser Replacement Part HVAC?
Yes. This is the factory-specified OEM contactor for the Carrier OEM Carrier Contactor C48A503551 Condenser Replacement Part HVAC. 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 contactor on my Carrier OEM Carrier Contactor C48A503551 Condenser Replacement Part HVAC?
Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Open condensing unit panel. Step 3: Photograph ALL wiring on the contactor. Step 4: Label each wire with tape. Step 5: Disconnect wires and remove old contactor. Step 6: Mount new contactor, reconnect wires matching your photo. Step 7: Restore power and test.
My AC clicks but the compressor won’t turn on. What’s wrong?
Clicking from the outdoor unit without the compressor starting = worn contactor. The contactor sends power to the compressor. When its contacts are pitted, it clicks but can’t make solid contact. Look for: visible pitting/burn marks on the contactor face, intermittent operation, or buzzing.
Is this contactor 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 contactor?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
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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