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OEM Carrier Contactor 1-Pole 30A 24V for PH10JA036000ADAA
Carrier

OEM Carrier Contactor 1-Pole 30A 24V for PH10JA036000ADAA

SKU: CARRIE-PH10JA036000ADAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH10JA036000ADAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 1-Pole Contactor 30 Amp 24V — HN51KC024 for Model PH10JA036000ADAA

This genuine OEM Carrier contactor (part# HN51KC024) is the factory-specified replacement for the Carrier PH10JA036000ADAA heat pump/AC system. The contactor acts as a high-voltage relay: when your thermostat calls for cooling, the 24V control circuit energizes the coil, the contacts close, and line voltage is delivered to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an AC unit that won't start, chatters loudly, runs continuously, or fails to shut off — all signs it's time to replace this part.

  • Specs: 1-Pole configuration | 24 VAC coil voltage | 30A FLA (Full Load Amps) | 150A LRA (Locked Rotor Amps) | 50/60 Hz | OEM part# HN51KC024
  • OEM vs Generic: This is a genuine Carrier Factory Authorized Part, manufactured to exact OEM coil resistance and contact-gap tolerances. Generic aftermarket contactors can exhibit contact pitting, coil burnout, and premature failure under high cycling loads — especially critical in a heat pump application like the PH10JA036000ADAA that runs year-round.
  • Install difficulty: 2/5 — Always shut off power at the disconnect box before opening the control compartment. Photograph all wiring before disconnecting. Tools needed: flathead and Phillips screwdriver, needle-nose pliers, multimeter to verify 24V coil pull-in after installation. Follow the unit wiring diagram for line, load, and coil lead connections.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered for Carrier model PH10JA036000ADAA. Also cross-references part numbers P282-0311, HN51CC024, P282-1304, 301362-101, 301323-101, and 72930DP1. Always verify the part number on your existing contactor's label before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy.

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 PH10JA036000ADAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH10JA036000ADAA. 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 PH10JA036000ADAA?
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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