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OEM Carrier Contactor 2-Pole 24V Coil for C4850C50AY03661 — Ships Today
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for C4850C50AY03661 — Ships Today

SKU: CARRIE-C4850C50AY03661-CONTACTOR-HN53CB115 Brand: Carrier
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Texas CMBL #19328542014
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OEM Carrier 2-Pole Contactor for Model C4850C50AY03661 — Part# HN53CB115 / HN53HF122

This is the factory-specified OEM replacement contactor for the Carrier C4850C50AY03661 packaged unit. The contactor is a high-voltage relay that receives a low-voltage (24V) signal from the thermostat or control board and closes the circuit to send line voltage to the compressor and condenser fan motor. When the contactor fails — due to worn contact points, pitting, or a burnt coil — the system will hum without starting, fail to cool entirely, or trip the breaker repeatedly. Replacing it promptly prevents cascading damage to the compressor.

  • Specs: 2-pole configuration | 24V coil voltage | Rated for single-phase line voltage applications | OEM part numbers HN53CB115 and HN53HF122 — verify your unit's data plate for the correct cross-reference
  • OEM vs Generic: OEM Carrier contactors are manufactured to exact factory contact ratings and coil pull-in voltage tolerances. Generic contactors may use thinner contact material that pits faster under high-cycle summer loads, risking compressor failure within one season.
  • Install difficulty: 2/5 — Always disconnect power at the disconnect box and confirm voltage is zero with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers. Photograph all wiring connections before removal. Swap one wire at a time to avoid miswiring.
  • Warranty: 1-year OEM factory warranty against defects. In-stock units ship same business day from our warehouse when ordered before 3PM local time.

Compatibility: Designed for the Carrier C4850C50AY03661 packaged unit. Two OEM part numbers apply to this model — HN53CB115 and HN53HF122 — reflecting a production revision; both are direct replacements. Always confirm coil voltage and pole configuration against your existing contactor's label before installation. Need help verifying fitment? Our HVAC parts specialists confirm compatibility before you order — no guesswork.

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 C4850C50AY03661 — Ships Today?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50AY03661 — Ships Today. 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 C4850C50AY03661 — Ships Today?
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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