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OEM Carrier Contactor 1-Pole 24V 30A for PH14NB01800GAAAA
Carrier

OEM Carrier Contactor 1-Pole 24V 30A for PH14NB01800GAAAA

SKU: CARRIE-PH14NB01800GAAAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH14NB01800GAAAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Single-Pole Contactor 1-Pole 24V 30A for Model PH14NB01800GAAAA

This is the genuine OEM factory-specified contactor for the Carrier PH14NB01800GAAAA heat pump unit, carrying Carrier part number HN51KC024. The contactor is the high-voltage switching relay that responds to a 24V signal from the thermostat or control board to energize the compressor and/or condenser fan motor. When it fails, the result is typically a complete loss of cooling or heating — the outdoor unit simply will not power on, or it may hum and buzz without the compressor starting. Burned or pitted contacts and a failed coil are the most common failure modes.

  • Specs: 1-Pole configuration | 24 VAC coil voltage | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 50/60 Hz rated
  • OEM vs Generic: This is a genuine Carrier Factory Authorized Part engineered to exact specifications for your unit. Generic contactors may not meet the precise contact gap, coil pull-in voltage, or LRA tolerance required, risking premature failure or compressor damage.
  • Install difficulty: 2/5 — Always shut off power at both the breaker and the disconnect before proceeding. Photograph all wiring before removing any terminals. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Verify 24V coil pull-in after installation with the thermostat calling for cooling.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PH14NB01800GAAAA heat pump. Also a widely used OEM contactor across Carrier, Bryant, and Payne residential and light-commercial systems up to 5 tons (60,000 BTU). Always verify your unit's wiring diagram and parts list before ordering. Our team is available to confirm fitment — just reach out before you buy.

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 PH14NB01800GAAAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH14NB01800GAAAA. 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 PH14NB01800GAAAA?
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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