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 Contactor 2-Pole 24V Coil for C4850C48AY05051
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for C4850C48AY05051

SKU: CARRIE-C4850C48AY05051-CONTACTOR-HN53CB115 Brand: Carrier
✓ Guaranteed to fit C4850C48AY05051 — 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 C4850C48AY05051

This OEM contactor is the factory-specified replacement for the Carrier C4850C48AY05051 packaged unit. The contactor is a high-voltage relay controlled by the 24V signal from your thermostat or control board. When the thermostat calls for cooling, the contactor closes and sends line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons a Carrier system hums but won't start, fails to cool entirely, or trips the breaker repeatedly. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.

  • Specs: 2-Pole configuration | 24V coil voltage | High-amperage rated contacts | Direct OEM factory replacement with matched contact geometry and coil resistance
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated for thousands of switching cycles. Generic contactors frequently use lower-grade alloys that pit and arc-weld closed — causing the unit to run continuously or fail to start entirely.
  • Install difficulty: 3/5 — Requires disconnecting line voltage at the disconnect box before service. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before removing the old contactor. Verify coil voltage and pole count match before ordering.
  • Warranty: 1-year OEM factory warranty against defects. Ships same business day from our stocked warehouse — most orders arrive in 1–3 business days.

Compatibility: Designed for the Carrier C4850C48AY05051 packaged unit. This contactor supersedes part numbers HN53CB115, HN53HF122, and HN53HG120 — all three are fulfilled by the same current OEM replacement. Always verify pole count, coil voltage, and amperage rating on your unit's data plate before ordering. Our parts specialists are available to confirm fitment — order with confidence and get back up and running today.

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 C4850C48AY05051?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C48AY05051. 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 C4850C48AY05051?
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