Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart
OEM Carrier 2-Pole 30A 24V Coil Definite Purpose Contactor for C4850C50AJ03661 — Ships Today
Carrier

OEM Carrier 2-Pole 30A 24V Coil Definite Purpose Contactor for C4850C50AJ03661 — Ships Today

SKU: CARRIE-C4850C50AJ03661-CONTACTOR-HN53CB115 Brand: Carrier
✓ Guaranteed to fit — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model C4850C50AJ03661

This OEM contactor (part number HN53CB115) is the factory-specified high-voltage relay for the Carrier C4850C50AJ03661 packaged unit. The contactor acts as the main electrical switch that energizes the compressor and condenser fan motor when your thermostat calls for cooling. When the contactor fails — due to pitted contacts, a burned coil, or stuck plunger — the unit will either refuse to start, run continuously without cycling off, or trip the breaker repeatedly. Replacing it is one of the most common and cost-effective AC repairs available.

  • Specs: 2-Pole configuration | 24V AC coil voltage | Factory-rated amperage for Carrier C4850C50AJ03661 | OEM part number HN53CB115 | Built to Carrier factory tolerances for reliable switching under high-load conditions
  • OEM vs Generic: This is a genuine OEM Carrier contactor. OEM units feature contact surfaces rated to exact amperage specifications, preventing premature pitting and arcing that plague lower-quality generic replacements — protecting your compressor investment.
  • Install difficulty: 2/5 — Shut off power at the disconnect box and verify zero voltage with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, multimeter, needle-nose pliers. Photograph all wire positions before removal. The contactor slides out of the control panel and wires transfer one at a time.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier C4850C50AJ03661 packaged unit. Always confirm coil voltage and pole configuration on your unit's data plate before ordering. Our HVAC parts specialists are available to verify fitment — order with confidence and get your system back online fast.

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 C4850C50AJ03661 — Ships Today?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50AJ03661 — 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 C4850C50AJ03661 — 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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online