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OEM Payne Contactor 2-Pole 24V for PA1PNA018000AABA
Payne

OEM Payne Contactor 2-Pole 24V for PA1PNA018000AABA

SKU: PAYNE-PA1PNA018000AABA-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 for Model PA1PNA018000AABA

This OEM replacement contactor is the factory-specified part for the Payne PA1PNA018000AABA split-system air conditioner. The contactor functions as the primary high-voltage relay in your outdoor condensing unit — when the thermostat calls for cooling, the 24V control circuit energizes the contactor coil, closing the contacts and sending 240V power to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an AC system won't start, hums without running, or trips a breaker repeatedly. OEM part numbers HN51KB024 and HN52KC025 are both cross-referenced for this application.

  • Specs: 2-Pole configuration | 24V coil voltage | Heavy-duty contact rating | Direct factory replacement for OEM part numbers HN51KB024 and HN52KC025
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated for thousands of switching cycles. Generic alternatives often use lower-grade contacts that pit and burn quickly, leading to repeat failures within a single season.
  • Install difficulty: 2/5 — Always shut off power at the disconnect box and confirm 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 connections before removal to ensure correct reinstallation.
  • Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our warehouse when ordered before 3PM local time.

Compatibility: Designed specifically for the Payne PA1PNA018000AABA condensing unit. Verify your existing contactor's pole count and coil voltage against your unit's data plate before ordering. Cross-reference OEM part numbers HN51KB024 or HN52KC025 to confirm fitment. Have questions about compatibility? Our HVAC parts specialists verify fitment before you order — 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 $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 PA1PNA018000AABA?
Yes. This is the factory-specified OEM contactor for the Payne PA1PNA018000AABA. 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 PA1PNA018000AABA?
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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