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OEM Carrier Contactor 2-Pole 24V Coil for CH14NA02400GAAAA
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for CH14NA02400GAAAA

SKU: CARRIE-CH14NA02400GAAAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit CH14NA02400GAAAA — 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 CH14NA02400GAAAA

This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier CH14NA02400GAAAA split-system air conditioner. The contactor is a high-voltage relay that receives a 24V signal from your thermostat and closes the circuit to supply 240V power to the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed coil — your outdoor unit will not respond when the thermostat calls for cooling, leaving the system completely dead at the condenser.

  • Specs: 2-pole configuration | 24V AC coil voltage | Rated for single-stage cooling operation | Factory-matched contact material and coil resistance for the CH14NA02400GAAAA platform
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated to factory amperage specifications, resisting pitting and arcing far longer than generic substitutes with lower-grade contacts. Using an OEM part protects your compressor investment and reduces callbacks.
  • Install difficulty: 3/5 — Always shut off power at the disconnect box AND the breaker panel before opening the unit. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor. Line-voltage terminals remain live until power is fully disconnected — exercise extreme caution.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed and factory-specified for the Carrier CH14NA02400GAAAA 2-ton single-stage split-system condenser. Verify your existing contactor's pole count and coil voltage on the data plate or wiring diagram before ordering. Our fitment team is available to confirm compatibility before you purchase — no guesswork required.

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 CH14NA02400GAAAA?
Yes. This is the factory-specified OEM contactor for the Carrier CH14NA02400GAAAA. 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 CH14NA02400GAAAA?
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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