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OEM Carrier Contactor 1-Pole 30A 24V for PH4GNAB36000AA
Carrier

OEM Carrier Contactor 1-Pole 30A 24V for PH4GNAB36000AA

SKU: CARRIE-PH4GNAB36000AA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH4GNAB36000AA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 1-Pole 30 Amp 24V Contactor HN51KC024 for Model PH4GNAB36000AA

This is the genuine OEM factory-specified contactor for the Carrier PH4GNAB36000AA heat pump/air conditioning system. The contactor is the high-voltage relay that closes when the thermostat sends a 24V signal, allowing line voltage to reach the compressor and condenser fan motor. When it fails — due to pitted contacts, a burned coil, or welded contact points — the system will appear completely unresponsive, hum without starting, or run continuously without shutting off.

  • 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 is the exact factory-authorized part for your Carrier unit. OEM contactors meet precise coil resistance and contact gap tolerances. Generic alternatives may use substandard contact materials that pit and weld faster under high cycling loads, especially in summer.
  • Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Photograph all wiring connections before removing the old contactor. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, multimeter (to verify coil resistance and confirm 24V pull-in). Note: low-voltage coil wires may be positioned differently on the replacement vs. the original — consult the unit wiring diagram.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Factory-specified replacement contactor for Carrier model PH4GNAB36000AA. Also cross-references part numbers HN51CC024, P282-1304, P282-1305, 301362-101, and 72930DP1. Verify your unit's parts list or data plate before ordering. Our fitment team is available to confirm compatibility 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 PH4GNAB36000AA?
Yes. This is the factory-specified OEM contactor for the Carrier PH4GNAB36000AA. 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 PH4GNAB36000AA?
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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