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OEM Carrier Contactor 1-Pole 30A 24V for PH13NB018000AAAA
Carrier

OEM Carrier Contactor 1-Pole 30A 24V for PH13NB018000AAAA

SKU: CARRIE-PH13NB018000AAAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH13NB018000AAAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Single-Pole Contactor 30A 24V Coil — HN51KC024 for Model PH13NB018000AAAA

This is the genuine OEM replacement contactor for the Carrier PH13NB018000AAAA heat pump system. The contactor is the high-voltage relay that receives a 24V signal from your thermostat and closes the circuit to power the compressor and/or condenser fan motor. When it fails — due to pitted contacts, a welded switch, or a burned coil — your outdoor unit will appear completely dead even while the thermostat is calling for cooling or heating. Symptoms include the outdoor unit not starting, audible humming with no compressor engagement, or the system running constantly without shutting off (welded contacts).

  • Specs: 1-Pole | 30A FLA / 150A LRA | 24 VAC coil voltage | 50/60 Hz | OEM Part# HN51KC024
  • OEM vs Generic: This Factory Authorized Part is engineered to meet exact Carrier specifications for the PH13NB018000AAAA, ensuring precise coil pull-in voltage, contact rating, and terminal placement. Generic contactors may vary in contact gap and coil sensitivity, leading to premature failure or nuisance lockouts.
  • Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before proceeding. Photograph all wiring connections before removing the old contactor. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Verify 24V coil signal at thermostat call before condemning the contactor.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered for Carrier model PH13NB018000AAAA. Verify part number against your unit's wiring diagram or data plate before ordering. Cross-references include HN51CC024, P282-1304, P282-1305, and P282-0311. Our fitment team is available to confirm compatibility before you buy — order today and get your system back online fast.

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 PH13NB018000AAAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH13NB018000AAAA. 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 PH13NB018000AAAA?
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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