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OEM Carrier 410A Contactor 2-Pole 24V Coil for CA16NA03600GBAAA
Carrier

OEM Carrier 410A Contactor 2-Pole 24V Coil for CA16NA03600GBAAA

SKU: CARRIE-CA16NA03600GBAAA-CONTACTOR-HN51KC024 Brand: Carrier
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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil (HN51KC024) for Model CA16NA03600GBAAA

This is the factory OEM replacement contactor for the Carrier CA16NA03600GBAAA split-system air conditioner. The contactor is the high-voltage relay that allows the 24V thermostat signal to switch line voltage to the compressor and condenser fan motor. When it fails — due to burned or pitted contact points, a stuck plunger, or a failed coil — your system will either refuse to turn on entirely, run continuously without cycling off, or trip the breaker. A faulty contactor is one of the most common causes of a non-responsive AC unit during peak cooling season.

  • Specs: 2-pole configuration | 24V AC coil voltage | Rated for line-voltage switching | OEM part number HN51KC024 | Factory-matched contact material and coil resistance
  • OEM vs Generic: OEM contactors use factory-spec silver-alloy contact points rated for exact amperage loads on the CA16NA03600GBAAA compressor circuit. Generic contactors often use inferior contact materials that pit and arc prematurely, especially under the high inrush current of R-410A compressor starts.
  • Install difficulty: 3/5 — Always shut off power at the disconnect box AND the breaker panel before beginning. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, multimeter, insulated gloves. Photograph all wiring connections before removing any terminals. Verify coil voltage with your multimeter after installation before restoring power.
  • Warranty: 1-year OEM factory warranty against defects. In-stock and ships the same business day from our warehouse.

Compatibility: Designed and factory-specified for the Carrier CA16NA03600GBAAA 3-ton single-stage split-system condenser. Always verify OEM part number HN51KC024 against your unit's data plate and wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment — 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 CA16NA03600GBAAA?
Yes. This is the factory-specified OEM contactor for the Carrier CA16NA03600GBAAA. 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 CA16NA03600GBAAA?
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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