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OEM Carrier 40A Contactor 2-Pole 24V Coil for CH13NA04800GAAAA
Carrier

OEM Carrier 40A Contactor 2-Pole 24V Coil for CH13NA04800GAAAA

SKU: CARRIE-CH13NA04800GAAAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit CH13NA04800GAAAA — 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 CH13NA04800GAAAA

This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier CH13NA04800GAAAA split-system air conditioner. The contactor is the high-voltage relay that receives a 24V signal from your thermostat and closes the circuit to send 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, leaving your system blowing warm air or cycling the indoor blower with no cooling effect.

  • Specs: 2-pole configuration | 24V AC coil voltage | 30–40 amp rated | Screw terminal connections | Direct OEM replacement for part number HN51KC024
  • OEM vs Generic: This OEM contactor is manufactured to Carrier's exact contact-gap, coil-pull-in voltage, and current-rating specifications. Generic contactors often use thinner silver-alloy contacts that pit faster under the high-inrush current of a 4-ton compressor, leading to repeat failures within one to two seasons.
  • Install difficulty: 3/5 — Disconnect power at both the breaker panel and the outdoor disconnect box before starting. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, and a multimeter to confirm zero voltage before touching terminals. Photograph all wiring connections before removal.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before 3 PM ship same business day from our climate-controlled warehouse.

Compatibility: Engineered specifically for the Carrier CH13NA04800GAAAA 4-ton single-stage split-system condenser. Always verify coil voltage and pole configuration on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — contact us and we'll confirm in minutes.

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 CH13NA04800GAAAA?
Yes. This is the factory-specified OEM contactor for the Carrier CH13NA04800GAAAA. 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 CH13NA04800GAAAA?
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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