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OEM Carrier Contactor 2-Pole 24V for LC748LCCSRMY2500
Carrier

OEM Carrier Contactor 2-Pole 24V for LC748LCCSRMY2500

SKU: CARRIE-LC748LCCSRMY2500-CONTACTOR-HN52TC024 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor for Model LC748LCCSRMY2500 — Part# HN52TC024 / HN52TC040

This is the factory-specified OEM replacement contactor for the Carrier LC748LCCSRMY2500 condensing unit. The contactor is a high-voltage relay that receives a 24V signal from your thermostat and closes the circuit to deliver line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contact points, a stuck plunger, or a burned-out coil — the system will either refuse to turn on at all, run continuously without shutting off, or trip the breaker repeatedly. Replacing with a genuine OEM part ensures correct coil pull-in voltage, contact ampacity, and long-term reliability.

  • Specs: 2-Pole configuration | 24V coil voltage | Compatible OEM Part Numbers: HN52TC024 and HN52TC040 | Heavy-duty silver-alloy contact points rated for high cycle life
  • OEM vs Generic: Genuine Carrier OEM contactors are manufactured to exact factory tolerances for coil resistance and contact rating. Generic contactors often use lower-grade contact alloys that pit and char faster, leading to premature failure — especially in high-cycle cooling climates.
  • Install Difficulty: 2/5 — Shut off power at both the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting. Line-voltage terminals remain energized at the disconnect box — verify power is off with your multimeter before touching any wires.
  • Warranty: Backed by a 1-year OEM factory warranty. Orders placed by 3PM EST ship same business day from our stocked warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier model LC748LCCSRMY2500. Cross-references OEM part numbers HN52TC024 and HN52TC040. Always verify coil voltage and pole configuration on your unit's data plate before ordering. Not sure it's the right part? Our HVAC parts specialists confirm fitment before you buy — contact us anytime.

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 LC748LCCSRMY2500?
Yes. This is the factory-specified OEM contactor for the Carrier LC748LCCSRMY2500. 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 LC748LCCSRMY2500?
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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