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OEM Carrier Contactor 2-Pole 24V Coil for CA16NW04200GBAAA
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for CA16NW04200GBAAA

SKU: CARRIE-CA16NW04200GBAAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit CA16NW04200GBAAA — 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 CA16NW04200GBAAA

This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier CA16NW04200GBAAA split-system air conditioner. The contactor is a high-voltage relay controlled by a low-voltage (24V) signal from the thermostat. When the thermostat calls for cooling, the contactor closes and delivers line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an air conditioner will not turn on — symptoms include a humming sound at the contactor with no compressor response, a unit that stays on even after the thermostat is satisfied, or visible pitting and burning on the contact points.

  • Specs: 2-pole configuration | 24V AC coil voltage | Rated for high-amperage compressor loads | Direct OEM replacement for part number HN51KC024
  • OEM vs Generic: OEM contactors are manufactured to Carrier's exact electrical specifications, ensuring proper coil pull-in voltage and contact rating. Generic contactors may use lighter contact materials that pit and fail faster under the compressor's inrush current.
  • Install Difficulty: 2/5 — Always disconnect power at the disconnect box and verify voltage is absent with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before removing the old contactor to ensure correct reinstallation.
  • Warranty: 1-year OEM factory warranty against defects. Orders ship same business day from our climate-controlled warehouse.

Compatibility: Engineered specifically for the Carrier CA16NW04200GBAAA condensing unit. Always verify the OEM part number HN51KC024 against your unit's wiring diagram or data plate before ordering. Not sure about fitment? Our HVAC parts specialists confirm compatibility before you buy — no guesswork required.

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 CA16NW04200GBAAA?
Yes. This is the factory-specified OEM contactor for the Carrier CA16NW04200GBAAA. 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 CA16NW04200GBAAA?
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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