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OEM Carrier 40A Contactor 2-Pole 24V Coil for C4850C48AY03651
Carrier

OEM Carrier 40A Contactor 2-Pole 24V Coil for C4850C48AY03651

SKU: CARRIE-C4850C48AY03651-CONTACTOR-HN53CB115 Brand: Carrier
✓ Guaranteed to fit C4850C48AY03651 — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model C4850C48AY03651

This OEM replacement contactor is the factory-specified high-voltage relay for the Carrier C4850C48AY03651 packaged unit. The contactor acts as the primary switching device that energizes the compressor and condenser fan motor when the thermostat sends a 24V signal. A failed contactor is one of the most common reasons a system appears completely unresponsive — symptoms include an AC unit that hums but won't start, fails to cool, or shows visible pitting and burning on the contact points. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.

  • Specs: 2-Pole configuration | 24V coil voltage | 40A rated contacts | Factory-matched coil pull-in voltage for reliable thermostat triggering
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated for the exact amperage draw of your Carrier system. Generic contactors often use lower-grade contacts that pit and arc faster, leading to repeat failures within a single season.
  • Install difficulty: 3/5 — Always shut off power at the disconnect and breaker before beginning. Tools needed: 1/4" and 5/16" nut drivers, flathead screwdriver, multimeter. Photograph all wire positions before disconnecting — incorrect wiring can damage the control board. Discharge any capacitors in the unit before working near high-voltage terminals.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our stocked warehouse.

Compatibility: Engineered specifically for the Carrier C4850C48AY03651 packaged unit and cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Always verify coil voltage and pole configuration on your unit's data plate before ordering. Our fitment team is available to confirm compatibility — order with confidence and get your system back online fast.

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 $99
  • 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 info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Contactor fit my Carrier C4850C48AY03651?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C48AY03651. 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 C4850C48AY03651?
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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