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OEM Carrier 2-Pole Contactor 24V Coil for C4850C50AY03551 — Ships Today
Carrier

OEM Carrier 2-Pole Contactor 24V Coil for C4850C50AY03551 — Ships Today

SKU: CARRIE-C4850C50AY03551-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 C4850C50AY03551

This OEM replacement contactor is the factory-specified high-voltage relay for the Carrier C4850C50AY03551 packaged unit. The contactor acts as the primary electrical switch that energizes the compressor and condenser fan motor when the thermostat calls for cooling. When the contactor fails — due to pitted contacts, a burned coil, or a stuck plunger — the system will either fail to start entirely, run continuously without shutting off, or trip the breaker repeatedly. Replacing it with an OEM-matched part restores safe, reliable operation.

  • Specs: 2-pole configuration | 24V control coil | High-amperage contact rating | Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120 | Factory-matched electrical ratings for the C4850C50AY03551
  • OEM vs Generic: OEM Carrier contactors use higher-grade silver-alloy contact points that resist pitting and arcing far longer than generic alternatives. Generic contactors often carry undersized coils that degrade faster under the voltage fluctuations common in packaged units.
  • Install difficulty: 3/5 — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, wire labels or camera for documenting existing wiring. Transfer one wire at a time to avoid miswiring.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before cutoff ship same business day from our HVAC-dedicated warehouse.

Compatibility: Designed for the Carrier C4850C50AY03551 packaged unit. Cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Verify pole count, coil voltage, and amperage rating on your unit's data plate before ordering. Need fitment confirmation? Our parts team is standing by to verify compatibility before you buy — order with confidence and get back to cool faster.

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 C4850C50AY03551 — Ships Today?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50AY03551 — 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 C4850C50AY03551 — 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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