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OEM Carrier Contactor C48A503511 Condenser Replacement Part HVAC

SKU: carrier-contactor-c48a503511 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 C48A503511 Condenser Replacement Part HVAC

The OEM Carrier contactor (C48A503511) is the genuine factory-grade switch that controls power to your condensing unit's compressor and fan motor on every cooling cycle. Engineered to Carrier's exact specifications, it delivers crisp contact closure, reliable coil pull-in, and long service life under the heavy amp loads HVAC systems demand. Built specifically for Carrier model C48A503511, it offers a precise electrical and mechanical match for a seamless, modification-free installation. A worn contactor often causes buzzing, intermittent cooling, or a unit that won't start—this exact replacement eliminates those faults and returns your system to dependable operation. Installation is a moderate task: shut off power, label and transfer the wiring, mount the new contactor, and restore power. A qualified technician typically completes it in roughly 30 minutes with standard hand tools. Choosing authentic OEM over a universal alternative protects your compressor and ensures lasting compatibility. Order before 3PM CST and your contactor ships the same day, restoring trusted Carrier cooling performance quickly and with confidence in genuine factory-original quality.

Compatibility

This part is compatible with Carrier model C48A503511.

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 C48A503511 Condenser Replacement Part HVAC?
Yes. This is the factory-specified OEM contactor for the Carrier OEM Carrier Contactor C48A503511 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 C48A503511 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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