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OEM Carrier 2-Pole 24V Coil Contactor HN53CB115 for C4850C50ZT105610 | National HVAC Parts
Carrier

OEM Carrier 2-Pole 24V Coil Contactor HN53CB115 for C4850C50ZT105610 | National HVAC Parts

SKU: CARRIE-C4850C50ZT105610-CONTACTOR-HN53CB115 Brand: Carrier
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Texas CMBL #19328542014
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OEM Carrier 2-Pole Contactor 24V Coil for Model C4850C50ZT105610

This OEM contactor is the factory-specified replacement for the Carrier C4850C50ZT105610 packaged unit. The contactor is a high-voltage relay that connects and disconnects power to the compressor and condenser fan motor whenever the thermostat calls for cooling. When it fails — due to burned or pitted contacts, a stuck plunger, or a failed 24V coil — the system will either refuse to start entirely, run continuously without shutting off, or fail to energize the compressor while the fan runs. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.

  • Specs: 2-pole configuration | 24V control coil | Factory-rated amperage for compressor load | Direct OEM replacement with correct terminal layout and mounting footprint
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated for thousands of switching cycles. Generic contactors often use lower-grade contact materials that pit and weld prematurely, leading to repeat failures within one season.
  • Install difficulty: 3/5 — Disconnect all power at the disconnect box and breaker panel before beginning. Tools needed: flat-head and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before removing the old contactor. Transfer one wire at a time to avoid miswiring.
  • Warranty: 1-year OEM factory warranty. In-stock and ships the same business day from our warehouse.

Compatibility: Designed for the Carrier C4850C50ZT105610 packaged unit. Cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120 — confirm coil voltage and pole configuration on your unit's data plate before ordering. Our fitment team is available to verify compatibility prior to purchase. Order today and get same-day shipping on all in-stock 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 C4850C50ZT105610 | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50ZT105610 | 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 C4850C50ZT105610 | 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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