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OEM Carrier 2-Pole 24V Coil Definite Purpose 40A Contactor HN53CB115 for C4850C50ZG040500 | National HVAC Parts
Carrier

OEM Carrier 2-Pole 24V Coil Definite Purpose 40A Contactor HN53CB115 for C4850C50ZG040500 | National HVAC Parts

SKU: CARRIE-C4850C50ZG040500-CONTACTOR-HN53CB115 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model C4850C50ZG040500

This OEM contactor is the factory-specified replacement for the Carrier C4850C50ZG040500 packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes to send line voltage to the compressor and condenser fan motor. When it fails — through burnt contacts, a stuck plunger, or a failed coil — the system either won't energize at all or runs continuously without responding to thermostat commands. Replacing a worn contactor is one of the most cost-effective repairs in HVAC service.

  • Specs: 2-pole configuration | 24V control coil | 30–40A contact rating | Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120 | Factory-matched coil pull-in voltage
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated for exact factory amperage draw. Generic alternatives frequently use lower-grade contacts that pit and weld prematurely, leading to repeat failures and potential compressor damage.
  • Install difficulty: 2/5 — Disconnect power at the disconnect box and verify zero voltage with a multimeter before touching any terminals. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter. Photograph all wiring before removing the old contactor to ensure correct reconnection.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before 3 PM EST ship same business day from our stocked warehouse.

Compatibility: Designed for the Carrier C4850C50ZG040500 packaged unit. This contactor crosses to OEM part numbers HN53CB115, HN53HF122, and HN53HG120 — verify your existing part number against this list before ordering. Always confirm pole count, coil voltage, and amperage rating on your unit's data plate. Our parts specialists are available to verify fitment before you purchase.

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 C4850C50ZG040500 | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50ZG040500 | 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 C4850C50ZG040500 | 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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