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OEM Carrier Contactor 2-Pole 24V Coil for C4850C50AJ02761 | National HVAC Parts
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for C4850C50AJ02761 | National HVAC Parts

SKU: CARRIE-C4850C50AJ02761-CONTACTOR-HN53CB115 Brand: Carrier
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Texas CMBL #19328542014
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OEM Carrier 2-Pole Contactor HN53CB115 for Model C4850C50AJ02761

This is the factory-specified OEM contactor (part number HN53CB115) for the Carrier C4850C50AJ02761 packaged unit. The contactor is a high-voltage relay controlled by the 24V signal from your thermostat — when the stat calls for cooling, the contactor closes and supplies line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an air conditioning system won't start: symptoms include a humming noise with no compressor engagement, intermittent operation, pitted or burned contacts, or a unit that runs continuously because the contacts have welded shut.

  • Specs: 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for Carrier C4850C50AJ02761 | Heavy-duty silver alloy contact tips for extended service life
  • OEM vs Generic: OEM contactors use factory-spec contact materials and coil windings calibrated for your unit's exact electrical load. Generic contactors often use lower-grade contact alloys that pit and corrode faster, leading to repeat failures within one or two seasons.
  • Install difficulty: 2/5 — Always disconnect power at the breaker and verify zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor to ensure correct reinstallation.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before 3PM ET ship same business day from our climate-controlled warehouse.

Compatibility: Designed specifically for the Carrier C4850C50AJ02761 packaged unit. Verify OEM part number HN53CB115 against your unit's data plate or existing contactor label before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you buy if you have any questions. In stock and ready to ship today.

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 C4850C50AJ02761 | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50AJ02761 | National HVAC Parts. 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 C4850C50AJ02761 | National HVAC Parts?
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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Mike Rivera
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