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OEM Carrier Contactor 2-Pole 24V for LC748LCCSRMY2100
Carrier

OEM Carrier Contactor 2-Pole 24V for LC748LCCSRMY2100

SKU: CARRIE-LC748LCCSRMY2100-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 LC748LCCSRMY2100

This OEM contactor is the factory-specified replacement for the Carrier LC748LCCSRMY2100 air conditioning system. The contactor is a high-voltage relay that receives a 24V signal from your thermostat and closes the circuit to send line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, burned coil, or a stuck plunger — the outdoor unit will not energize, leaving you with warm air or a completely non-responsive system. OEM part numbers HN52TC024 and HN52TC040 are both covered by this listing; verify your existing part number on the component label before ordering.

  • Specs: 2-Pole configuration | 24V AC coil voltage | Factory-matched contact rating | Direct OEM replacement for HN52TC024 and HN52TC040
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated for thousands of switching cycles. Generic contactors often use lower-grade contacts that pit and weld prematurely, causing compressor burnout or nuisance lockouts.
  • Install difficulty: 2/5 — Disconnect power at the breaker and verify zero voltage with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting for reference during reassembly.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed by 3 PM ship same business day from our climate-controlled warehouse.

Compatibility: Designed for the Carrier LC748LCCSRMY2100 system. Cross-references OEM part numbers HN52TC024 and HN52TC040. Always confirm the pole count, coil voltage, and amperage rating on your existing contactor's label before installation. Our parts specialists are available to verify fitment — contact us before you order if you have any questions.

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 LC748LCCSRMY2100?
Yes. This is the factory-specified OEM contactor for the Carrier LC748LCCSRMY2100. 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 LC748LCCSRMY2100?
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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