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OEM Carrier Contactor 24V Coil 2-Pole for PH13NR018000AEAA
Carrier

OEM Carrier Contactor 24V Coil 2-Pole for PH13NR018000AEAA

SKU: CARRIE-PH13NR018000AEAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH13NR018000AEAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Contactor HN51KC024 for Model PH13NR018000AEAA

This OEM contactor (part number HN51KC024) is the factory-specified replacement for the Carrier PH13NR018000AEAA heat pump system. The contactor is a high-voltage relay that acts as the primary switch between your thermostat's 24V control signal and the high-voltage power delivered to the compressor and condenser fan motor. When the contactor fails, the most common symptoms include the outdoor unit failing to energize at all, visible pitting or burning on the contact points, or the system running continuously without shutting off due to welded contacts.

  • Specs: 2-Pole design | 24V AC coil voltage | Factory-rated amperage for Carrier PH13NR series | Direct OEM replacement — no modifications required
  • OEM vs Generic: This is a genuine OEM Carrier contactor built to exact factory specifications. Generic contactors often use lower-grade contact materials that pit and weld prematurely, leading to repeat failures within one to two seasons.
  • Install Difficulty: 3/5 — Always disconnect power at the disconnect box AND the breaker panel before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before removing the old contactor. Capacitors nearby may hold a charge — discharge them safely before proceeding.
  • Warranty: 1-year OEM factory warranty. Orders placed by 3 PM local time ship same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PH13NR018000AEAA heat pump. Always verify your unit's data plate and existing contactor coil voltage before ordering. If you have any fitment questions, our HVAC parts specialists are available to confirm compatibility before you purchase — no guesswork required.

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 PH13NR018000AEAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH13NR018000AEAA. 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 PH13NR018000AEAA?
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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