Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart
OEM Carrier Contactor 2-Pole 24V Coil for LC748LCCSRMY2501
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for LC748LCCSRMY2501

SKU: CARRIE-LC748LCCSRMY2501-CONTACTOR-HN52TC024 Brand: Carrier

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model LC748LCCSRMY2501

This is the factory-specified OEM replacement contactor for the Carrier LC748LCCSRMY2501 condensing unit. The contactor is the primary high-voltage switching relay in your air conditioning system — when the thermostat calls for cooling, the 24V control circuit energizes the contactor coil, closing the high-voltage contacts that power the compressor and condenser fan motor. A failed contactor is one of the most common causes of a completely unresponsive outdoor unit: the system may hum without starting, fail to energize at all, or run continuously due to welded contacts. OEM part numbers HN52TC024 and HN52TC040 are the factory-authorized replacements for this model.

  • Specs: 2-pole configuration | 24V AC coil voltage | High-amperage contacts rated for compressor load | Direct OEM replacement per factory spec — verify amperage rating on your unit's data plate
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated to factory arc-suppression tolerances. Generic aftermarket units often use lower-grade contacts that pit and weld prematurely, leading to repeat failures and potential compressor damage.
  • Install difficulty: 3/5 — Always disconnect power at the disconnect box AND the breaker before servicing. Tools needed: flat-head and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before removal. Verify coil voltage and pole count match before installing.
  • Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our stocked warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier LC748LCCSRMY2501 condensing unit using part numbers HN52TC024 or HN52TC040. Confirm pole count, coil voltage (24V), and contact amperage against your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — contact us before placing your order.

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 LC748LCCSRMY2501?
Yes. This is the factory-specified OEM contactor for the Carrier LC748LCCSRMY2501. 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 LC748LCCSRMY2501?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online