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OEM Carrier Contactor 2-Pole 24V Coil Definite Purpose Contactor for C4850C50AK02051 | National HVAC Parts
Carrier

OEM Carrier Contactor 2-Pole 24V Coil Definite Purpose Contactor for C4850C50AK02051 | National HVAC Parts

SKU: CARRIE-C4850C50AK02051-CONTACTOR-HN53CB115 Brand: Carrier
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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model C4850C50AK02051

This OEM replacement contactor is the factory-specified part for the Carrier C4850C50AK02051 packaged unit. The contactor is a high-voltage relay controlled by a 24V signal from your thermostat or control board. When you call 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 refuses to cool — you may hear a faint click or buzzing with no compressor engagement, or the unit may not respond at all. Replaces OEM part numbers HN53CB115 and HN53HF122.

  • Specs: 2-Pole design | 24V coil voltage | Factory-rated amperage for Carrier packaged units | Silver-alloy contact tips for long service life and low resistance
  • OEM vs Generic: This OEM contactor is manufactured to exact Carrier specifications. Aftermarket contactors often use lower-grade contact materials that pit and arc more quickly, leading to premature failure and potential compressor damage caused by voltage drop across worn contacts.
  • Install difficulty: 2/5 — Always disconnect power at the disconnect box and verify voltage is absent with a multimeter before beginning work. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removal.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier C4850C50AK02051 packaged unit. Verify coil voltage (24V) and pole configuration against your unit's wiring diagram and data plate before ordering. This part replaces OEM numbers HN53CB115 and HN53HF122. Our parts specialists are available to confirm fitment prior to purchase — don't guess on a high-voltage component. Order today and enjoy same-day shipping on all in-stock HVAC 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 $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 C4850C50AK02051 | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50AK02051 | 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 C4850C50AK02051 | 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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