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OEM Payne Contactor 2-Pole 24V Coil for PA10JA042000AHAA
Payne

OEM Payne Contactor 2-Pole 24V Coil for PA10JA042000AHAA

SKU: PAYNE-PA10JA042000AHAA-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 HN51KC024 for Model PA10JA042000AHAA

This is the factory OEM replacement contactor (part number HN51KC024) for the Payne PA10JA042000AHAA split-system air conditioner. The contactor is the high-voltage relay that receives a 24V signal from your thermostat and closes to supply line voltage to the compressor and condenser fan motor. When a contactor fails, symptoms include the outdoor unit failing to energize at all, chattering or buzzing at the contactor, pitted or burned contact points, or the compressor running continuously without cycling off due to welded contacts.

  • Specs: 2-pole configuration | 24V AC coil voltage | Rated for high-amperage compressor loads | Direct OEM replacement for part number HN51KC024 | Factory-matched contact surface area and coil pull-in voltage
  • OEM vs Generic: This is the genuine OEM Payne/Carrier-family contactor. OEM contacts are manufactured to exact current rating and contact gap tolerances. Aftermarket contactors frequently use inferior contact alloys that pit and weld faster under load, especially during high-ambient-temperature summer operation.
  • Install difficulty: 2/5 — Always shut off power at both the disconnect box and the breaker before beginning work. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter for coil continuity verification. Photograph all wiring connections before removal. Label each wire to its terminal to ensure correct reassembly.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before cutoff ship the same business day from our climate-controlled warehouse.

Compatibility: Engineered specifically for the Payne PA10JA042000AHAA 3.5-ton split-system air conditioner. Cross-references OEM part number HN51KC024. Verify your existing contactor's pole count and coil voltage against your unit's data plate before ordering — if you have any doubts about fitment, our HVAC parts specialists are available to confirm compatibility before you buy. Order now and receive same-day shipping on in-stock OEM 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 PA10JA042000AHAA?
Yes. This is the factory-specified OEM contactor for the Payne PA10JA042000AHAA. 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 PA10JA042000AHAA?
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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