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OEM Carrier Contactor 24V Coil 2-Pole for PH13NB02500GAAAA
Carrier

OEM Carrier Contactor 24V Coil 2-Pole for PH13NB02500GAAAA

SKU: CARRIE-PH13NB02500GAAAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH13NB02500GAAAA — 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 PH13NB02500GAAAA (HN51KC024)

This is the factory OEM replacement contactor for the Carrier PH13NB02500GAAAA heat pump condensing unit. The contactor is a high-voltage relay controlled by your thermostat's 24V signal — when the thermostat calls for cooling or heating, the contactor closes and sends line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons a heat pump outdoor unit won't energize: symptoms include the system not turning on at all, chattering or buzzing at the contactor, pitting or burned contacts, or the unit running continuously without shutting off.

  • Specs: OEM Part Number HN51KC024 | 2-Pole design | 24V AC coil voltage | Factory-rated amperage for Carrier PH13NB02500GAAAA — matches unit data plate specifications exactly
  • OEM vs Generic: This is a genuine OEM Carrier contactor, built to exact factory specifications. Generic aftermarket contactors may use lower-grade contact materials that pit faster under load, increasing the risk of premature failure and compressor damage.
  • Install difficulty: 3/5 — Requires shutting off power at both the breaker and disconnect box before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Always photograph all wiring connections before removal. Discharge any capacitors in the unit before working nearby.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed as a direct OEM replacement for Carrier model PH13NB02500GAAAA heat pump condensing units. Always cross-reference the OEM part number HN51KC024 on your existing contactor label or unit wiring diagram before ordering to confirm fitment. Our parts specialists are available to verify compatibility before you buy — 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 PH13NB02500GAAAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH13NB02500GAAAA. 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 PH13NB02500GAAAA?
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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