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OEM Carrier 40A Contactor 2-Pole 24V Coil for CH13NA04900GABAA
Carrier

OEM Carrier 40A Contactor 2-Pole 24V Coil for CH13NA04900GABAA

SKU: CARRIE-CH13NA04900GABAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit CH13NA04900GABAA — 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 CH13NA04900GABAA

This is the factory-specified OEM contactor (part number HN51KC024) for the Carrier CH13NA04900GABAA split-system air conditioner. The contactor is a high-voltage relay that bridges the gap between your thermostat's 24V control signal and the high-voltage power feeding the compressor and condenser fan motor. When it fails, the most common symptom is an air conditioner that simply won't turn on — the thermostat calls for cooling, but nothing happens at the outdoor unit. You may also notice pitting or burning on the contactor contacts from years of electrical arcing, or hear a loud chattering/buzzing from the contactor coil.

  • Specs: 2-Pole configuration | 24V AC coil voltage | 30–40 amp contact rating | Direct OEM replacement for part number HN51KC024 | Factory-matched contact material for full rated service life
  • OEM vs Generic: OEM contactors use silver-alloy contacts rated to the exact amperage draw of your Carrier system. Generic contactors frequently use lower-grade contact material that pits faster under load, leading to premature failure and potential compressor damage.
  • Install difficulty: 2/5 — Always shut off power at both the disconnect box and breaker panel before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor. Transfer one wire at a time to avoid miswiring.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our climate-controlled warehouse.

Compatibility: Designed specifically for the Carrier CH13NA04900GABAA single-stage split-system condenser. Cross-reference OEM part number HN51KC024 against your unit's data plate to confirm coil voltage and pole configuration before ordering. Our HVAC parts specialists are available to verify fitment — don't guess on a part this critical to compressor protection.

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 CH13NA04900GABAA?
Yes. This is the factory-specified OEM contactor for the Carrier CH13NA04900GABAA. 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 CH13NA04900GABAA?
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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