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 Replacement Par...

IMAGE COMING SOON

Carrier

OEM Carrier Contactor Replacement Part for Model C4850C48AY02551

SKU: carrier-contactor-c4850c48ay02551 Brand: Carrier
$42.95

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 Replacement Part for Model C4850C48AY02551

This genuine OEM Carrier contactor is the factory-specified switching relay for Carrier model C4850C48AY02551. When cooling is called for, the contactor's coil pulls in to close robust contacts that supply line voltage to the compressor and condenser fan motor. Pitting and burning of those contacts over time leads to classic symptoms like a unit that hums but won't start, short cycling, or no cooling at all. Engineered to Carrier's precise electrical and dimensional standards, this contactor drops straight into model C4850C48AY02551 without modification, ensuring proper amperage, coil voltage, and terminal arrangement. The job is easy-to-moderate for an experienced technician and typically takes 20 to 30 minutes—remember to cut power at the disconnect and snap a photo of the wiring before pulling leads. Genuine OEM parts keep your warranty intact and last longer than generic copies. We maintain inventory on this item, and every order placed before 3PM CST ships the same day, so you can get the system cooling again with minimal downtime.

Compatibility

This part is compatible with Carrier model C4850C48AY02551.

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 C4850C48AY02551?
Yes. This is the factory-specified OEM contactor for the Carrier Model C4850C48AY02551. 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 C4850C48AY02551?
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