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OEM Payne Contactor 2-Pole 24V Coil for PA1ZNA042000ABAA
Payne

OEM Payne Contactor 2-Pole 24V Coil for PA1ZNA042000ABAA

SKU: PAYNE-PA1ZNA042000ABAA-CONTACTOR-HN51KB024 Brand: Payne
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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Payne 2-Pole Contactor HN51KB024 for Model PA1ZNA042000ABAA

This OEM replacement contactor (part number HN51KB024) is the factory-specified high-voltage relay for the Payne PA1ZNA042000ABAA split-system air conditioner. The contactor acts as the primary switching device that connects 240V power to the compressor and condenser fan motor each time your thermostat calls for cooling. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed 24V coil — the outdoor unit will not energize, leaving your system blowing warm air or failing to respond entirely.

  • Specs: 2-pole configuration | 24V AC coil voltage | Rated for compressor and condenser fan load | OEM part number HN51KB024 | Factory-matched contact material for long service life
  • OEM vs Generic: This OEM contactor uses factory-grade contact alloy rated to exact amperage specifications for the PA1ZNA042000ABAA. Aftermarket contactors often use inferior contact materials that pit and weld faster under high inrush current, shortening replacement intervals significantly.
  • Install difficulty: 3/5 — Always disconnect power at the breaker AND the disconnect block before touching any components. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, wire labels or tape. Photograph all wiring connections before removal. The line-side terminals remain live until the disconnect is pulled — treat with caution.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our stocked warehouse.

Compatibility: Designed specifically for the Payne PA1ZNA042000ABAA split-system condenser. Verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — just reach out before you order. In stock and ready to ship today.

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 $99
  • 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 info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Contactor fit my Payne PA1ZNA042000ABAA?
Yes. This is the factory-specified OEM contactor for the Payne PA1ZNA042000ABAA. 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 PA1ZNA042000ABAA?
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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