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 Contactor C50A306021 for ...

IMAGE COMING SOON

Carrier

OEM Carrier Contactor C50A306021 for Model C50A306021 HVAC Part

SKU: carrier-contactor-c50a306021 Brand: Carrier
$44.95

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 Contactor C50A306021 for Model C50A306021 HVAC Part

This genuine OEM Carrier contactor (C50A306021) is the heavy-duty switch responsible for sending line voltage to your compressor and condenser fan motor whenever cooling is requested. A thermostat signal energizes the coil, snapping the contacts shut to start the outdoor unit and opening them again to safely halt power between cycles. When the contacts burn, weld, or chatter, the result is a no-start condition, loud buzzing, or short cycling — classic signs a contactor has failed. Built to the exact original specifications of Carrier model C50A306021, this replacement provides the correct coil voltage, contact rating, and pole count for a precise factory fit. The installation is a moderate DIY task: shut off power at the disconnect, take a photo of the existing connections, and transfer the wires one terminal at a time. Choosing the authentic OEM part safeguards your warranty and ensures long-term reliability. This contactor is in stock and ready to ship. Order before 3PM CST and it goes out the same day.

Compatibility

This part is compatible with Carrier model C50A306021.

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 Model C50A306021 HVAC Part?
Yes. This is the factory-specified OEM contactor for the Carrier Model C50A306021 HVAC Part. 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 Model C50A306021 HVAC Part?
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.
Home Shop Search Account Cart