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OEM Carrier 40A Contactor 2-Pole 24V Coil for HP13NR01800GAKAA
Carrier

OEM Carrier 40A Contactor 2-Pole 24V Coil for HP13NR01800GAKAA

SKU: CARRIE-HP13NR01800GAKAA-CONTACTOR-HN51KC024 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Contactor 2-Pole 24V Coil for Model HP13NR01800GAKAA

This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier HP13NR01800GAKAA heat pump condenser. The contactor is a high-voltage relay controlled by the 24V thermostat 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 an outdoor unit simply will not energize: you may hear a click at the air handler but nothing happens outside, or the unit runs continuously without shutting off due to pitted or welded contacts.

  • Specs: 2-pole configuration | 24V AC coil | 30–40A contact rating | Direct OEM replacement for part number HN51KC024 | Factory-matched contact material for maximum service life
  • OEM vs Generic: OEM Carrier contactors use factory-spec silver-alloy contacts rated to manufacturer amperage tolerances. Generic aftermarket contactors frequently use lower-grade contact material that pits prematurely under load, leading to repeat failures within a single season.
  • Install difficulty: 2/5 — Shut off all power at the disconnect box and breaker panel before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, non-contact voltage tester. Photograph all wiring connections before removing the old contactor. Transfer wires one at a time to avoid miswiring.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse — order by 3 PM local time for same-day dispatch.

Compatibility: Designed as a direct OEM drop-in replacement for the Carrier HP13NR01800GAKAA heat pump condenser. Always verify coil voltage and pole configuration on your unit's data plate or wiring diagram before ordering. Our parts specialists are available to confirm fitment prior to purchase — reach out 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 $75
  • 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 HP13NR01800GAKAA?
Yes. This is the factory-specified OEM contactor for the Carrier HP13NR01800GAKAA. 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 HP13NR01800GAKAA?
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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