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OEM Payne Contactor 2-Pole 24V Coil for PA10JA01800GACAA
Payne

OEM Payne Contactor 2-Pole 24V Coil for PA10JA01800GACAA

SKU: PAYNE-PA10JA01800GACAA-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 2-Pole Contactor HN51KB024 for Model PA10JA01800GACAA

This is the factory OEM replacement contactor (part number HN51KB024) for the Payne PA10JA01800GACAA split-system air conditioner. The contactor is a high-voltage relay that controls power delivery to the compressor and condenser fan motor. When your thermostat calls for cooling, the 24V control circuit energizes the contactor coil, closing the high-voltage contacts that bring the outdoor unit to life. A failed contactor is one of the most common causes of an AC that won't start — symptoms include the outdoor unit remaining completely silent, buzzing without starting, or contacts that weld shut causing the unit to run continuously even when cooling is not called for.

  • Specs: 2-pole configuration | 24V AC coil voltage | 40-amp contact rating | Direct OEM replacement — part number HN51KB024 | Factory-matched contact material and coil resistance
  • OEM vs Generic: OEM contactors use factory-spec contact alloy and coil windings, ensuring proper pull-in voltage and long contact life. Generic contactors frequently use inferior contact materials that arc and pit faster, leading to repeat failures and potential compressor damage.
  • Install difficulty: 2/5 — Always disconnect power at the disconnect box and breaker panel before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Verify capacitor discharge before touching any terminals in the unit.
  • Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our NationalHVACParts.com warehouse.

Compatibility: Engineered specifically for the Payne PA10JA01800GACAA condenser unit. Always cross-reference the OEM part number HN51KB024 and verify pole count and coil voltage against your unit's wiring diagram before ordering. Our fitment team is available to confirm compatibility — reach out before you order if you have any questions. Order today and get same-day shipping on all in-stock parts.

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 PA10JA01800GACAA?
Yes. This is the factory-specified OEM contactor for the Payne PA10JA01800GACAA. 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 PA10JA01800GACAA?
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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