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OEM Carrier Contactor 2-Pole 24V Coil for CA14NA02400GBAAA
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for CA14NA02400GBAAA

SKU: CARRIE-CA14NA02400GBAAA-CONTACTOR-HN51KC024 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model CA14NA02400GBAAA

This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier CA14NA02400GBAAA split-system air conditioner. The contactor is a high-voltage relay controlled by the 24V signal from your thermostat — when the thermostat calls for cooling, the contactor closes and delivers line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons a condenser unit simply won't respond: you may hear the indoor air handler running while the outdoor unit stays completely silent, or notice pitting and burning on the contact points during inspection.

  • Specs: 2-pole configuration | 24V AC coil voltage | 30-amp rated contacts | Direct OEM replacement for part number HN51KC024 | Factory-matched contact material and coil pull-in voltage
  • OEM vs Generic: This OEM unit uses factory-spec contact material and coil windings. Generic contactors frequently use lower-grade contacts that pit and weld prematurely — especially under high-cycling summer loads — reducing service life significantly.
  • Install difficulty: 2/5 — Always disconnect and lock out power at the disconnect box before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before removing any terminals. Transfer one wire at a time to avoid miswiring.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship the same business day from our stocked warehouse.

Compatibility: Engineered specifically for the Carrier CA14NA02400GBAAA 2-ton split-system condenser. Confirm coil voltage (24V) and pole configuration on your unit's data plate or existing contactor before ordering. Our HVAC parts specialists are available to verify fitment — reach out before you order if you have any questions. In stock and ready to ship today.

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

Frequently Asked Questions

Does this Contactor fit my Carrier CA14NA02400GBAAA?
Yes. This is the factory-specified OEM contactor for the Carrier CA14NA02400GBAAA. 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 CA14NA02400GBAAA?
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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Mike Rivera
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