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OEM Carrier 40A Contactor 2-Pole 24V Coil for CA13NA03000GAABA
Carrier

OEM Carrier 40A Contactor 2-Pole 24V Coil for CA13NA03000GAABA

SKU: CARRIE-CA13NA03000GAABA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit CA13NA03000GAABA — 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 CA13NA03000GAABA

This OEM contactor is the factory-specified replacement for the Carrier CA13NA03000GAABA split-system air conditioner. The contactor is the high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to energize the compressor and condenser fan motor. When a contactor fails, the most common symptoms are an AC unit that simply won't turn on, a compressor that won't engage despite the thermostat calling for cooling, or a unit that hums loudly without starting. Pitted or burned contacts are the leading cause of contactor failure in residential condensers.

  • Specs: 2-pole configuration | 24V AC coil voltage | 30–40 amp rated | OEM part number HN51KC024 | Factory-matched electrical specifications for Carrier CA13NA03000GAABA
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated for the exact inrush current of your Carrier compressor. Generic contactors may use inferior contact materials that pit rapidly under load, leading to repeat failures within a single season.
  • Install Difficulty: 2/5 — Always disconnect power at the disconnect box and confirm zero voltage with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before removing the old contactor. Wire-for-wire swap — typically 15–30 minutes for an experienced DIYer.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier model CA13NA03000GAABA single-stage split-system condensers. Verify coil voltage and pole configuration on your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy — same-day shipping on all in-stock orders.

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 CA13NA03000GAABA?
Yes. This is the factory-specified OEM contactor for the Carrier CA13NA03000GAABA. 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 CA13NA03000GAABA?
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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