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OEM Carrier 40A Contactor 2-Pole 24V Coil for CA13NA036BNGADBA
Carrier

OEM Carrier 40A Contactor 2-Pole 24V Coil for CA13NA036BNGADBA

SKU: CARRIE-CA13NA036BNGADBA-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 CA13NA036BNGADBA

This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier CA13NA036BNGADBA split-system air conditioner. The contactor is a high-voltage relay that receives a low-voltage (24V) signal from your thermostat and closes to send 240V power directly to the compressor and condenser fan motor. When it fails, the condenser unit will not respond when cooling is called — you may hear a click from the thermostat with no outdoor unit activity, notice pitted or burned contact points, or find the system stuck in a locked-out state.

  • Specs: 2-pole design | 24V coil voltage | 30–40A contact rating | Factory-matched OEM replacement for part number HN51KC024
  • OEM vs Generic: This OEM contactor uses factory-spec contact material and coil winding, ensuring reliable pull-in voltage and long contact life. Generic contactors frequently use lower-grade contact alloys that pit and weld prematurely, especially in high-cycle Southern climates.
  • Install difficulty: 2/5 — Always disconnect power at the disconnect box and confirm voltage is zero with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wire positions before removing the old contactor.
  • Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship the same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier CA13NA036BNGADBA 3-ton single-stage R-410A split-system condenser. Always verify the OEM part number HN51KC024 against your unit's data plate or existing contactor label before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before every order — reach out before you buy.

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 CA13NA036BNGADBA?
Yes. This is the factory-specified OEM contactor for the Carrier CA13NA036BNGADBA. 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 CA13NA036BNGADBA?
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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