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OEM Carrier 2-Pole 30A 24V Coil Definite Purpose Contactor for CSA0300M5Y | National HVAC Parts
Carrier

OEM Carrier 2-Pole 30A 24V Coil Definite Purpose Contactor for CSA0300M5Y | National HVAC Parts

SKU: CARRIE-CSA0300M5Y-CONTACTOR-HN53CD209 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model CSA0300M5Y — HN53CD209

This is the factory OEM replacement contactor (part number HN53CD209) for the Carrier CSA0300M5Y split-system condenser. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes to deliver 240V line power to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a welded contactor, or a burned coil — the system will either refuse to start, hum without running, or run continuously without shutting off.

  • Specs: 2-pole configuration | 24V AC coil voltage | 30A contact rating | 240V load voltage | Direct OEM replacement matching factory specifications for Carrier CSA0300M5Y
  • OEM vs Generic: This OEM contactor uses factory-grade silver-alloy contacts engineered for the exact duty cycle of the CSA0300M5Y. Generic contactors often use lower-grade contact materials that pit and fail faster under compressor inrush current loads.
  • Install difficulty: 3/5 — Requires shutting off power at the disconnect and breaker before beginning work. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and wire labels or tape. Photograph all wiring connections before removing any wires. Test coil voltage (24V) and contact continuity after installation.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse when ordered before 3PM local time.

Compatibility: Engineered as a direct OEM replacement for the Carrier CSA0300M5Y condenser unit. Always verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our parts specialists are available to confirm 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 CSA0300M5Y | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier CSA0300M5Y | National HVAC Parts. 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 CSA0300M5Y | National HVAC Parts?
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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