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OEM Carrier 30A Contactor 2-Pole 24V Coil for CA14NA03600GAAAA
Carrier

OEM Carrier 30A Contactor 2-Pole 24V Coil for CA14NA03600GAAAA

SKU: CARRIE-CA14NA03600GAAAA-CONTACTOR-HN51KC024 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil (HN51KC024) for Model CA14NA03600GAAAA

This is the genuine OEM replacement contactor (part number HN51KC024) for the Carrier CA14NA03600GAAAA split-system air conditioner. The contactor is a high-voltage relay controlled by your thermostat's 24V signal — when the thermostat calls for cooling, the contactor closes and sends line voltage to the compressor and condenser fan motor. A failed or pitted contactor is one of the most common reasons an air conditioner hums but won't start, or refuses to turn on at all even with a healthy thermostat signal.

  • Specs: 2-pole configuration | 24V AC coil voltage | 30A contact rating | Compatible with R-410A systems | OEM part number HN51KC024 — factory-matched for Carrier CA14NA03600GAAAA
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated to factory arc-flash tolerances. Generic contactors frequently use thinner contact material that pits faster under compressor inrush current, leading to premature failure within one to two seasons.
  • Install Difficulty: 2/5 — Shut off power at both the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, non-contact voltage tester. Photograph all wire positions before removal. Transfer wires one at a time to avoid miswiring the line and load terminals.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our climate-controlled warehouse.

Compatibility: Engineered specifically for the Carrier CA14NA03600GAAAA 3-ton single-stage R-410A split-system condenser. Always verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Not sure if this part fits your exact configuration? Our HVAC parts specialists verify fitment before every order — 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 $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 CA14NA03600GAAAA?
Yes. This is the factory-specified OEM contactor for the Carrier CA14NA03600GAAAA. 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 CA14NA03600GAAAA?
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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