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OEM Carrier Contactor 1-Pole 30A 24V for PH12NA03600GAGAA
Carrier

OEM Carrier Contactor 1-Pole 30A 24V for PH12NA03600GAGAA

SKU: CARRIE-PH12NA03600GAGAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH12NA03600GAGAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 1-Pole 30 Amp Contactor HN51KC024 for Model PH12NA03600GAGAA

This is the genuine OEM replacement contactor for the Carrier PH12NA03600GAGAA split-system heat pump. The contactor is a high-voltage relay controlled by the 24V thermostat circuit; when the thermostat calls for cooling or heating, the 24VAC coil energizes and closes the contacts to send line voltage to the compressor. When a contactor fails, symptoms include the outdoor unit not turning on at all, the compressor humming but not starting, or visible pitting and burning on the contact surfaces. Replacing a worn contactor promptly prevents compressor damage from voltage fluctuations and arcing.

  • Specs: 1-Pole configuration | 30 Amp rated load | 24 VAC coil voltage | 50/60 Hz | OEM part number HN51KC024
  • OEM vs Generic: This is a genuine Carrier OEM contactor, factory-matched to the exact coil pull-in voltage and contact rating of your unit. Generic aftermarket contactors often use inferior contact alloys that pit faster and fail prematurely under compressor inrush loads.
  • Install difficulty: 2/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Verify 24VAC coil pull-in after installation with thermostat call.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PH12NA03600GAGAA split-system heat pump and other Carrier, Bryant, and Payne models specifying HN51KC024. Always verify your unit's wiring diagram and data plate before ordering. Need help confirming fitment? Our HVAC parts specialists are standing by.

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 PH12NA03600GAGAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH12NA03600GAGAA. 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 PH12NA03600GAGAA?
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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