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OEM Carrier 40A Contactor 2-Pole 24V Coil for CH13NA01900GABBA
Carrier

OEM Carrier 40A Contactor 2-Pole 24V Coil for CH13NA01900GABBA

SKU: CARRIE-CH13NA01900GABBA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit CH13NA01900GABBA — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model CH13NA01900GABBA

This is the OEM factory-specified contactor (part number HN51KC024) for the Carrier CH13NA01900GABBA split-system condenser. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes to supply line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed coil — the outdoor unit will not energize at all, even when the thermostat is calling for cooling. You may also notice the system running continuously without shutting off if the contacts weld themselves closed.

  • Specs: 2-pole configuration | 24V AC coil voltage | 30–40A contact rating | Direct OEM replacement for part number HN51KC024 | Factory-matched electrical specifications
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated for the exact load cycles of your Carrier unit. Generic contactors often use lower-grade contacts that pit and burn faster, leading to repeat failures within a single cooling season.
  • Install difficulty: 2/5 — Always disconnect power at the disconnect box AND the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring terminals before removing the old contactor. One wire at a time transfer is strongly recommended.
  • Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our climate-controlled warehouse.

Compatibility: Engineered specifically for the Carrier CH13NA01900GABBA split-system air conditioner. Verify coil voltage (24V) and pole configuration on your unit's data plate before ordering. Our technical team is available to confirm fitment — reach out before you order if you have any questions. Order by 3PM local time for same-day shipping.

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 CH13NA01900GABBA?
Yes. This is the factory-specified OEM contactor for the Carrier CH13NA01900GABBA. 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 CH13NA01900GABBA?
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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