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OEM Carrier Contactor 1-Pole 24V 30A for PH13NR018000AAAA
Carrier

OEM Carrier Contactor 1-Pole 24V 30A for PH13NR018000AAAA

SKU: CARRIE-PH13NR018000AAAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH13NR018000AAAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Single-Pole Contactor 1-Pole 24V 30A for Model PH13NR018000AAAA (HN51KC024)

This OEM single-pole contactor is the factory-specified replacement for the Carrier PH13NR018000AAAA heat pump system. The contactor acts as a high-voltage relay, energized by the 24V thermostat signal to close the high-voltage circuit and power the compressor. When it fails, symptoms typically include the outdoor unit not turning on at all, audible chattering or humming from the contactor coil, the system running continuously and failing to shut off, or visible pitting and burning on the contact points. Replacing a worn contactor promptly protects the compressor from damaging voltage irregularities.

  • Specs: 1-Pole configuration | 24 VAC coil voltage | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 50/60 Hz | OEM Part# HN51KC024
  • OEM vs Generic: This is a genuine Carrier Factory Authorized Part, engineered to exact OEM specifications for your PH13NR018000AAAA unit. Generic contactors may vary in contact surface quality and coil pull-in voltage tolerance, risking premature failure under high summer loads.
  • Install Difficulty: 2/5 — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before touching any wiring. Photograph all line, load, and coil terminal connections before removal. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, multimeter. Verify 24V coil pull-in after installation with a thermostat call.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PH13NR018000AAAA heat pump systems. Verify your unit's data plate lists part number HN51KC024 before ordering. Not sure if this is the right contactor for your unit? Contact our HVAC parts specialists — we verify fitment before you buy. Order now and ship today.

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 PH13NR018000AAAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH13NR018000AAAA. 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 PH13NR018000AAAA?
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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