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Carrier

OEM Carrier Contactor HN51KC024 for Model CH14NA04800GAAAA

SKU: carrier-contactor-ch14na04800gaaaa Brand: Carrier
$29.95

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

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OEM Carrier Contactor HN51KC024 for Model CH14NA04800GAAAA

This genuine Carrier contactor (HN51KC024) is the electrically controlled switch that powers your compressor and condenser fan in the CH14NA04800GAAAA 4-ton unit. Every time the thermostat calls for cooling, the 24V coil pulls the contacts closed to send line voltage to the motors. Worn, pitted, or chattering contacts cause failure to start, buzzing, intermittent cooling, or welded contacts that won't shut off. This 2-pole 30-amp 24V coil contactor matches the factory specification for the CH14NA04800GAAAA, ensuring proper amperage rating and coil voltage. Installation is a simple 20-30 minute repair for a qualified technician: kill power at the disconnect, photograph the wiring, move the line, load, and coil leads to the identical terminals on the new contactor, and mount it. Basic hand tools only. Each contactor is genuine Carrier stock, tested, and built for reliable seasonal duty. Order before 3PM CST and your part ships same day so you can restore dependable cooling fast. Choose the correct OEM contactor to avoid repeat no-cool service calls.

Compatibility

This part is compatible with Carrier model CH14NA04800GAAAA.

Shipping

Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.

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 support@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Contactor fit my Carrier Model CH14NA04800GAAAA?
Yes. This is the factory-specified OEM contactor for the Carrier Model CH14NA04800GAAAA. 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 Model CH14NA04800GAAAA?
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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