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OEM Carrier Contactor 1-Pole 25A 24V Coil for PH10JA024000ADAA
Carrier

OEM Carrier Contactor 1-Pole 25A 24V Coil for PH10JA024000ADAA

SKU: CARRIE-PH10JA024000ADAA-CONTACTOR-HN51KB024 Brand: Carrier
✓ Guaranteed to fit PH10JA024000ADAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 1-Pole Contactor 25A 24V Coil — HN51KB024 for Model PH10JA024000ADAA

This OEM contactor is the factory-specified replacement for the Carrier PH10JA024000ADAA heat pump system. The contactor is a high-voltage relay that closes the circuit to power the compressor and condenser fan motor every time the thermostat calls for cooling or heating. When the contactor fails, the most common symptom is an outdoor unit that simply will not turn on — even while the indoor air handler continues to run — or the system may exhibit erratic short-cycling, buzzing, or pitting on the contact points due to electrical arcing over time.

  • Specs: 1-Pole | 25A Full Load Amps (FLA) | 24V AC 50/60Hz Coil | Definite Purpose Contactor | Factory-matched Carrier OEM replacement part number HN51KB024
  • OEM vs Generic: This is a genuine OEM Carrier contactor built to factory tolerances. Generic aftermarket units may have inferior contact materials, leading to faster pitting, coil burnout, and premature compressor failure — especially in high-cycle residential applications.
  • Install Difficulty: 2/5 — Disconnect and lock out all power before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and electrical tape. Always photograph existing wiring before removing the old contactor. Discharge any residual voltage and confirm all terminals match before energizing.
  • Warranty: 1-year OEM manufacturer warranty. In-stock orders ship same business day from our warehouse.

Compatibility: Designed for the Carrier PH10JA024000ADAA heat pump unit. Verify your unit's data plate for pole count, coil voltage, and amperage rating before ordering. Our fitment team is available to confirm compatibility prior to purchase — don't hesitate to reach out. Order now and ship today!

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 PH10JA024000ADAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH10JA024000ADAA. 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 PH10JA024000ADAA?
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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