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OEM Payne 2-Pole Contactor 24V Coil for PA3ZNB036000AB
Payne

OEM Payne 2-Pole Contactor 24V Coil for PA3ZNB036000AB

SKU: PAYNE-PA3ZNB036000AB-CONTACTOR-HN51KC024 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 24V Coil for Model PA3ZNB036000AB

This OEM replacement contactor (part number HN51KC024) is the factory-specified high-voltage relay for the Payne PA3ZNB036000AB split-system air conditioner. The contactor is responsible for switching 240V line power to the compressor and condenser fan motor whenever the thermostat calls for cooling. When the contactor fails, the low-voltage control circuit signals a call for cooling but nothing happens — the compressor and outdoor fan simply won't energize. Common symptoms include the outdoor unit not starting, visible pitting or burning on the contactor points, or a loud chattering/buzzing noise from the disconnect box.

  • Specs: 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for 3-ton R-410A condensers | Direct OEM replacement for part number HN51KC024
  • OEM vs Generic: This OEM contactor is built to exact Payne/Carrier factory tolerances with rated contact life and coil pull-in voltage. Generic contactors often use thinner contact surfaces that pit faster under load, leading to premature failure and potential compressor damage.
  • Install difficulty: 2/5 — Always disconnect power at the outdoor disconnect and indoor breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor to ensure correct reinstallation.
  • Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our climate-controlled warehouse.

Compatibility: Engineered for the Payne PA3ZNB036000AB 3-ton split-system condenser. Always verify coil voltage and pole configuration against your unit's wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment before you purchase — 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 PA3ZNB036000AB?
Yes. This is the factory-specified OEM contactor for the Payne PA3ZNB036000AB. 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 PA3ZNB036000AB?
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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