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OEM Payne Contactor 2-Pole 24V Coil for PA12NA02400GACAA
Payne

OEM Payne Contactor 2-Pole 24V Coil for PA12NA02400GACAA

SKU: PAYNE-PA12NA02400GACAA-CONTACTOR-HN51KB024 Brand: Payne

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

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OEM Payne Contactor 2-Pole 24V Coil for Model PA12NA02400GACAA

This is the factory OEM replacement contactor (part number HN51KB024) for the Payne PA12NA02400GACAA split-system air conditioner. The contactor is a high-voltage relay controlled by the 24V signal from your thermostat. When the thermostat calls for cooling, the contactor closes its contacts to send line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an air conditioner won't turn on — symptoms include a system that clicks but won't start, burned or pitted contact points, or a contactor that stays stuck open or closed.

  • Specs: 2-pole configuration | 24V AC coil voltage | High-amperage contacts rated for compressor load | Direct OEM replacement for part number HN51KB024
  • OEM vs Generic: This OEM contactor uses factory-spec contact materials and coil windings for precise pull-in voltage and long contact life. Generic contactors frequently use lower-grade contact alloys that pit and burn faster, especially during high-demand summer cycles.
  • Install difficulty: 2/5 — Always shut off power at the disconnect box and verify zero voltage with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, electrical tape. Photograph all wiring connections before removal.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Payne PA12NA02400GACAA split-system condenser. Verify coil voltage and pole configuration on your unit's data plate before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you order — 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 $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 support@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Contactor fit my Payne PA12NA02400GACAA?
Yes. This is the factory-specified OEM contactor for the Payne PA12NA02400GACAA. 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 Payne PA12NA02400GACAA?
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 Payne 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 Payne 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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