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OEM Carrier Contactor 2-Pole 24V Coil for C4850C50AY04151 | National HVAC Parts
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for C4850C50AY04151 | National HVAC Parts

SKU: CARRIE-C4850C50AY04151-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 C4850C50AY04151

This OEM contactor is the factory-specified replacement for the Carrier C4850C50AY04151 packaged unit. The contactor acts as the main high-voltage relay in the system, receiving a low-voltage (24V) signal from the thermostat and switching line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or a stuck plunger — the most common symptom is an air conditioning system that simply won't turn on, even though the thermostat is calling for cooling. You may also notice a buzzing or chattering sound near the contactor in the electrical compartment.

  • Specs: 2-pole configuration | 24V control coil voltage | Line voltage switching for compressor and condenser fan | OEM part numbers: HN53CB115, HN53HF122, HN53HG120 — all are factory-authorized replacements for this unit
  • OEM vs Generic: OEM Carrier contactors are manufactured to exact contact gap, coil pull-in voltage, and amperage ratings. Generic contactors often use thinner contact material that pits faster under the high inrush current of compressor startup, leading to repeat failures within a single season.
  • Install difficulty: 2/5 — Always shut off power at both the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting terminals. One-for-one terminal swap recommended.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier C4850C50AY04151 packaged unit. Cross-reference OEM part numbers HN53CB115, HN53HF122, or HN53HG120 against your unit's data plate and wiring diagram to confirm fitment. If you're unsure which part number applies to your exact serial range, our HVAC parts specialists can verify compatibility before you order — no guesswork required. Order now and receive same-day shipping on all in-stock contactors.

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 C4850C50AY04151 | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50AY04151 | 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 C4850C50AY04151 | 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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