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Carrier

OEM Carrier Contactor HN51KC024 for Model CH14NA04200GAAAA

SKU: carrier-contactor-ch14na04200gaaaa 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 CH14NA04200GAAAA

This genuine Carrier contactor (HN51KC024) is the power-switching relay that energizes the compressor and condenser fan in your CH14NA04200GAAAA 3.5-ton unit whenever the thermostat calls for cooling. The 24V coil closes the contacts to pass line voltage to the motors. Over time contacts pit, chatter, or weld, causing no-start conditions, buzzing, intermittent cooling, or a compressor that won't shut off. This 2-pole 30-amp 24V coil contactor matches the factory specification for the CH14NA04200GAAAA, ensuring the correct amperage and coil voltage. A qualified technician can install it in about 20-30 minutes: shut off the disconnect, photograph the existing wiring, transfer the line, load, and coil leads to the same terminals on the new contactor, and secure it. Only basic hand tools are needed. Each contactor is genuine Carrier stock, fully tested, and rated for reliable seasonal duty. Order before 3PM CST and your part ships the same day so cooling is restored fast. Use the correct OEM contactor to prevent repeat no-cool failures.

Compatibility

This part is compatible with Carrier model CH14NA04200GAAAA.

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 CH14NA04200GAAAA?
Yes. This is the factory-specified OEM contactor for the Carrier Model CH14NA04200GAAAA. 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 CH14NA04200GAAAA?
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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