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OEM Carrier 2-Pole 30A 24V Coil Definite Purpose Contactor for C48A303512 — HN53CB115 | National HVAC Parts
Carrier

OEM Carrier 2-Pole 30A 24V Coil Definite Purpose Contactor for C48A303512 — HN53CB115 | National HVAC Parts

SKU: CARRIE-C48A303512-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 C48A303512 — HN53CB115

This is the OEM factory-specified contactor (part number HN53CB115) for the Carrier C48A303512 packaged unit. The contactor is a high-voltage relay controlled by the 24V thermostat signal — when the thermostat calls for cooling, the contactor closes its contacts to energize the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioner that hums but won't start, or simply does nothing when cooling is called. Pitted contacts, a burnt coil, or contacts that weld shut are all signs it's time to replace this component.

  • Specs: 2-Pole | 24V coil voltage | High-amperage contacts rated for compressor load | Direct OEM replacement per Carrier part number HN53CB115
  • OEM vs Generic: This OEM contactor is manufactured to exact Carrier factory specifications — matching coil pull-in voltage, contact material, and amperage rating. Generic contactors may use inferior contact alloys that pit faster under load, leading to repeat failures within a single season.
  • Install difficulty: 3/5 — Disconnect all power and verify voltage is absent before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, multimeter, needle-nose pliers. Photograph all wiring connections before removing the old contactor to ensure correct reinstallation.
  • Warranty: 1-year OEM factory warranty. In stock and ships the same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier C48A303512 packaged unit. Always verify coil voltage and pole configuration against your unit's wiring diagram and data plate before ordering. Our HVAC parts specialists are available to confirm fitment prior to purchase — 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 $75
  • 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 C48A303512 — HN53CB115 | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier C48A303512 — HN53CB115 | 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 C48A303512 — HN53CB115 | 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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