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OEM Carrier Contactor 2-Pole 24V for LC748LCCSRMP2500
Carrier

OEM Carrier Contactor 2-Pole 24V for LC748LCCSRMP2500

SKU: CARRIE-LC748LCCSRMP2500-CONTACTOR-HN52TC024 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model LC748LCCSRMP2500

This OEM replacement contactor is the factory-specified high-voltage relay for the Carrier LC748LCCSRMP2500 condensing unit. The contactor acts as the main power switch between your thermostat's 24V control signal and the high-voltage supply feeding the compressor and condenser fan motor. When it fails — due to pitted contacts, a stuck plunger, or a burned coil — the system will either fail to start entirely, run continuously without shutting off, or trip the breaker repeatedly. OEM part numbers HN52TC024 and HN52TC040 are both covered by this listing; verify your existing part number on the contactor body before ordering.

  • Specs: 2-Pole configuration | 24V coil voltage | Factory-rated amperage for Carrier LC748LCCSRMP2500 | Direct OEM replacement for HN52TC024 and HN52TC040
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated for the exact inrush current of your compressor. Generic units often use lower-grade contacts that pit and weld prematurely, leading to repeat failures within one to two seasons.
  • Install difficulty: 2/5 — Shut off power at the disconnect box and confirm voltage is absent with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, non-contact voltage tester. Photograph all wiring connections before removing the old contactor.
  • Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered as a direct OEM replacement for Carrier model LC748LCCSRMP2500. Cross-references OEM part numbers HN52TC024 and HN52TC040. Always confirm coil voltage and pole configuration on your existing contactor's data label before installing. Our fitment specialists are available to verify compatibility before you order — no guesswork required.

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 LC748LCCSRMP2500?
Yes. This is the factory-specified OEM contactor for the Carrier LC748LCCSRMP2500. 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 LC748LCCSRMP2500?
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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