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OEM Carrier Contactor 1-Pole 24V 30A HN51KC024 — PY4GNAB36090AA
Carrier

OEM Carrier Contactor 1-Pole 24V 30A HN51KC024 — PY4GNAB36090AA

SKU: CARRIE-PY4GNAB36090AA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PY4GNAB36090AA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 1-Pole Contactor 24V 30A (HN51KC024) for Model PY4GNAB36090AA

This is the genuine OEM Carrier contactor for the PY4GNAB36090AA packaged unit. The contactor is the high-voltage relay that bridges line-voltage power to the compressor and condenser fan motor whenever the thermostat sends a 24V demand signal. When it fails, you'll typically notice the system completely refusing to start, audible chattering or humming from the control box, or — in worst-case pitted-contact failures — the unit running continuously even after the thermostat call ends. Replacing a worn contactor promptly protects the compressor from the voltage irregularities that cause premature failure.

  • Specs: 1-Pole configuration | 24 VAC coil voltage | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 50/60 Hz | OEM Part # HN51KC024
  • OEM vs Generic: This Factory Authorized Part is engineered to meet exact Carrier specifications for contact gap, coil pull-in voltage, and silver-alloy contact material — ensuring reliable pull-in under all load conditions. Generic contactors frequently use lower-grade contact alloys that pit and weld faster under compressor start loads.
  • Install difficulty: 2/5 — Always disconnect and lock out all power before starting. Photograph all wiring connections before removal. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (verify 24V coil signal before condemning the contactor). Swap one wire at a time to avoid miswiring. Verify contactor pulls in cleanly on a 24V thermostat call after installation.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for Carrier model PY4GNAB36090AA. Also cross-references part numbers HN51CC024, P282-0311, P282-1304, P282-1305, 301362-101, and 301323-101. Always verify the part number against your unit's wiring diagram or data plate before ordering. Not sure it fits? Contact our team — we verify fitment 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 $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 Carrier OEM Carrier Contactor 1-Pole 24V 30A HN51KC024 — PY4GNAB36090AA?
Yes. This is the factory-specified OEM contactor for the Carrier OEM Carrier Contactor 1-Pole 24V 30A HN51KC024 — PY4GNAB36090AA. 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 Carrier OEM Carrier Contactor 1-Pole 24V 30A HN51KC024 — PY4GNAB36090AA?
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 Carrier 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 Carrier 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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Mike Rivera
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