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OEM Carrier Contactor 2-Pole 24V Coil HN53CB115 for C4850C50AJ04111 | National HVAC Parts
Carrier

OEM Carrier Contactor 2-Pole 24V Coil HN53CB115 for C4850C50AJ04111 | National HVAC Parts

SKU: CARRIE-C4850C50AJ04111-CONTACTOR-HN53CB115 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor HN53CB115 for Model C4850C50AJ04111

This is the factory OEM replacement contactor (part number HN53CB115) for the Carrier C4850C50AJ04111 packaged unit. The contactor is a high-voltage relay controlled by a low-voltage (24V) signal from the thermostat or control board. When the thermostat calls for cooling, the contactor closes its poles to send line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioning system that powers on but won't cool — symptoms include the outdoor unit failing to start, visible pitting or burning on the contact points, or a contactor that is stuck open or welded shut.

  • Specs: 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for Carrier C4850C50AJ04111 | Heavy-duty silver alloy contact points for long service life
  • OEM vs Generic: This OEM contactor is manufactured to exact Carrier factory specifications. Generic contactors may use lower-grade contact materials that pit and weld more quickly under high load cycling, leading to premature failure and potential compressor damage.
  • Install difficulty: 2/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Always photograph existing wiring before disconnecting terminals to ensure correct reinstallation.
  • Warranty: 1-year OEM factory warranty included. Orders placed before cutoff ship the same business day from our stocked warehouse.

Compatibility: Engineered specifically for the Carrier C4850C50AJ04111 packaged unit. Always verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — order with confidence and get your system back up and running 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 $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 info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Contactor fit my Carrier C4850C50AJ04111 | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50AJ04111 | 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 C4850C50AJ04111 | 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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