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OEM Carrier 2-Pole Contactor 40A 24V for TCHC0250HEFMRAF621
Carrier

OEM Carrier 2-Pole Contactor 40A 24V for TCHC0250HEFMRAF621

SKU: CARRIE-TCHC0250HEFMRAF621-CONTACTOR-HN52TC040 Brand: Carrier
✓ Guaranteed to fit TCHC0250HEFMRAF621 — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 40 Amp 24V Coil for Model TCHC0250HEFMRAF621

This is the genuine OEM Carrier contactor (part number HN52TC040), factory-specified for the TCHC0250HEFMRAF621 heat pump system. The contactor acts as a high-voltage relay, switching line-voltage power to the compressor and condenser fan motor whenever the thermostat calls for cooling or heating. When the contactor fails — due to worn contacts, a burned-out 24V coil, or pitted contact surfaces — the system will not start at all, or may run continuously without cycling off. Replacing it with the correct OEM part ensures proper coil pull-in voltage, rated ampacity, and reliable switching under load.

  • Specs: 2-Pole | 40 FLA (Full Load Amps) | 24V 50/60Hz Coil | 240/277V load voltage | Factory OEM tolerance — direct drop-in replacement
  • OEM vs Generic: OEM contactors feature precise coil winding resistance and silver-alloy contact surfaces rated to factory spec. Generic aftermarket contactors often use substandard contact materials that pit and arc prematurely, reducing service life and risking compressor damage.
  • Install difficulty: 2/5 — Always shut off power at the disconnect box before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Verify 24V coil signal from thermostat before condemning the contactor.
  • Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier model TCHC0250HEFMRAF621. Always verify amperage rating and coil voltage against your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy — order with confidence and get back up and running fast.

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 $99
  • 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 TCHC0250HEFMRAF621?
Yes. This is the factory-specified OEM contactor for the Carrier TCHC0250HEFMRAF621. 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 TCHC0250HEFMRAF621?
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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