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OEM Carrier Contactor 24V Coil 2-Pole for PH13NB048000AAAA
Carrier

OEM Carrier Contactor 24V Coil 2-Pole for PH13NB048000AAAA

SKU: CARRIE-PH13NB048000AAAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH13NB048000AAAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Contactor 24V Coil 2-Pole for Model PH13NB048000AAAA

This OEM replacement contactor (part number HN51KC024) is the factory-specified high-voltage relay for the Carrier PH13NB048000AAAA heat pump system. The contactor acts as the primary switching device that connects line voltage to the compressor and condenser fan motor whenever the thermostat sends a 24V signal. When the contactor fails — due to pitted or welded contacts, a burned coil, or a stuck plunger — the outdoor unit will either refuse to start entirely, run continuously without cycling off, or fail to respond to thermostat commands, leaving your home without heating or cooling.

  • Specs: 24V control coil | 2-pole design | Factory-rated amperage and contact configuration matched to PH13NB048000AAAA | OEM part number HN51KC024
  • OEM vs Generic: This is the genuine OEM Carrier contactor, manufactured to exact factory specifications. Generic contactors frequently use lower-grade contact materials that pit faster under load, causing premature failure and potential compressor damage.
  • Install Difficulty: 3/5 — WARNING: Always disconnect power at the disconnect box AND breaker panel before servicing. Line voltage (240V) is present at contactor terminals. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Verify coil voltage with multimeter before replacement.
  • Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our stocked warehouse.

Compatibility: Engineered as a direct OEM drop-in replacement for Carrier model PH13NB048000AAAA. Always verify the part number on your existing contactor's label and confirm coil voltage and pole count match before ordering. Our fitment specialists are available to confirm compatibility — contact us before you order if unsure.

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 PH13NB048000AAAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH13NB048000AAAA. 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 PH13NB048000AAAA?
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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