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OEM Carrier Contactor 24V Coil 2-Pole for PH13NR018000AHAA
Carrier

OEM Carrier Contactor 24V Coil 2-Pole for PH13NR018000AHAA

SKU: CARRIE-PH13NR018000AHAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH13NR018000AHAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Contactor 24V 2-Pole for Model PH13NR018000AHAA

This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier PH13NR018000AHAA heat pump condenser. The contactor is the high-voltage relay that bridges the 24V control signal from your thermostat to the 240V power supply feeding the compressor and condenser fan motor. When it fails, the most common symptoms are the outdoor unit failing to energize at all, the contactor chattering or buzzing loudly, or pitted/burned contacts causing intermittent cooling. Replacing a worn contactor promptly prevents downstream damage to the compressor — one of the most expensive components in any system.

  • Specs: 2-Pole design | 24V coil voltage | High-amperage contacts rated for compressor load | Factory-matched OEM specification for model PH13NR018000AHAA
  • OEM vs Generic: This OEM contactor uses factory-spec contact material and coil windings, ensuring consistent pull-in voltage and long service life. Generic contactors often use lower-grade contact alloys that pit and weld faster, especially in high-cycle climates.
  • Install difficulty: 2/5 — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wire connections before removal. Swap wires one at a time to avoid miswiring.
  • Warranty: 1-year OEM factory warranty. Orders placed before the cutoff ship same business day from our warehouse.

Compatibility: Designed specifically for the Carrier PH13NR018000AHAA heat pump. Verify coil voltage and pole configuration on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — reach out before placing your order.

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 PH13NR018000AHAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH13NR018000AHAA. 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 PH13NR018000AHAA?
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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