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OEM Carrier Single-Pole Contactor 1P 30A 24V for PH15NB03600GBBAA
Carrier

OEM Carrier Single-Pole Contactor 1P 30A 24V for PH15NB03600GBBAA

SKU: CARRIE-PH15NB03600GBBAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH15NB03600GBBAA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Single-Pole Contactor 1P 30A 24V for Model PH15NB03600GBBAA

This is the genuine OEM replacement contactor for the Carrier PH15NB03600GBBAA heat pump. The contactor is the high-voltage switching relay at the heart of your outdoor unit — when the thermostat sends a 24V signal, the contactor closes and delivers line-voltage power to the compressor. A failed contactor is one of the most common reasons an AC or heat pump stops cooling: symptoms include the system not turning on at all, a loud humming from the contactor coil with no compressor startup, or — in the case of welded contacts — the compressor running continuously even when cooling isn't called for.

  • Specs: 1-Pole | 30A FLA / 150A LRA | 24 VAC coil voltage | 50/60 Hz | OEM part number HN51KC024
  • OEM vs Generic: This is a Factory Authorized Part built to exact Carrier specifications. Generic contactors may use lower-grade contact material that pits faster under high-cycle conditions, shortening service life — especially critical on heat pumps that run year-round.
  • Install difficulty: 2/5 — Always disconnect and lock out power at the disconnect box before opening the unit. Photograph all wiring before removing the old contactor. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, non-contact voltage tester. After installation, verify 24V pull-in with a thermostat call before buttoning up the panel.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PH15NB03600GBBAA. Also used across Carrier, Bryant, and Payne residential and light-commercial AC and heat pump systems that call out part number HN51KC024. Always cross-reference your unit's data plate and wiring diagram before ordering. Our parts specialists are available to verify fitment — contact us before you order if you have any questions.

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 PH15NB03600GBBAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH15NB03600GBBAA. 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 PH15NB03600GBBAA?
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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