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OEM Carrier Contactor Replacement Part for Model CP50P450P405021CP

SKU: carrier-contactor-cp50p450p405021cp Brand: Carrier
$49.95

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

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OEM Carrier Contactor Replacement Part for Model CP50P450P405021CP

This genuine OEM Carrier contactor is the electrically-controlled switch that energizes your condensing unit's compressor and outdoor fan motor each time the thermostat calls for cooling. Engineered specifically for Carrier model CP50P450P405021CP, it delivers the exact coil voltage, pole configuration, and amperage rating the unit was built around, so you avoid the short-cycling, chattering, and burnt contacts that come from a generic substitute. A worn contactor is one of the most common reasons a system hums but won't start, and replacing it is a straightforward repair most handy homeowners and every HVAC technician can complete in about 20 minutes with the power off at the disconnect. Simply photograph the wiring, transfer each lead to the matching terminal, and secure the new contactor in place. Restore reliable, quiet startups and protect the compressor from voltage drop and pitting. In stock and ready to go — orders placed before 3PM CST ship the same business day. Buy with confidence knowing you're getting the correct factory-grade part for your Carrier system.

Compatibility

This part is compatible with Carrier model CP50P450P405021CP.

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 CP50P450P405021CP?
Yes. This is the factory-specified OEM contactor for the Carrier Model CP50P450P405021CP. 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 CP50P450P405021CP?
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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