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OEM Carrier Contactor 2-Pole 24V Coil for LC748LCCSRMYX2101
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for LC748LCCSRMYX2101

SKU: CARRIE-LC748LCCSRMYX2101-CONTACTOR-HN52TC040 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Contactor 2-Pole 24V Coil for Model LC748LCCSRMYX2101

This OEM contactor (part number HN52TC040) is the factory-specified replacement for the Carrier LC748LCCSRMYX2101 condensing unit. The contactor is the high-voltage relay that closes the circuit between your electrical panel and the compressor and condenser fan motor when the thermostat calls for cooling. When the contactor fails — due to burned contacts, a pitted coil, or a stuck plunger — the air conditioner will not start, will run continuously without shutting off, or will fail to respond to the thermostat entirely. Replacing a worn contactor promptly protects your compressor from voltage irregularities and premature failure.

  • Specs: 2-Pole configuration | 24V AC coil voltage | Factory-rated amperage for Carrier LC748LCCSRMYX2101 | OEM part number HN52TC040 | Direct drop-in replacement with matching terminal layout
  • OEM vs Generic: This OEM contactor uses factory-grade silver-alloy contact points rated to exact amperage specifications. Generic contactors frequently use lower-grade contact materials that pit and arc faster under load, increasing the risk of compressor damage and nuisance lockouts.
  • Install difficulty: 2/5 — Always disconnect power at the disconnect box AND the breaker before beginning work. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wire connections before removal. One-for-one terminal swap — no rewiring required.
  • Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Designed and factory-matched for the Carrier model LC748LCCSRMYX2101 condensing unit. Verify coil voltage (24V) and pole configuration on your unit's data plate or existing contactor label before ordering. Our parts specialists are available to confirm fitment — contact us before you order if you have any questions. Order now and get same-day shipping on this in-stock OEM part.

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 LC748LCCSRMYX2101?
Yes. This is the factory-specified OEM contactor for the Carrier LC748LCCSRMYX2101. 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 LC748LCCSRMYX2101?
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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