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OEM Carrier Contactor 1-Pole 25A 24V for PY3GNA036090AA
Carrier

OEM Carrier Contactor 1-Pole 25A 24V for PY3GNA036090AA

SKU: CARRIE-PY3GNA036090AA-CONTACTOR-HN51KB024 Brand: Carrier
✓ Guaranteed to fit PY3GNA036090AA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 1-Pole Contactor 25A 24V Coil (HN51KB024) for Model PY3GNA036090AA

This is the factory OEM replacement contactor for the Carrier PY3GNA036090AA packaged unit. The contactor is the high-voltage switching relay that closes when your thermostat sends a 24V call for cooling, energizing the compressor and/or condenser fan motor. When the contactor fails — through burned contacts, a welded coil, or a worn armature — the system will either fail to start, drop out unexpectedly mid-cycle, or run continuously without responding to thermostat commands.

  • Specs: 1-Pole | 24V AC Coil (50/60Hz) | 25A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | OEM Part Number: HN51KB024
  • OEM vs Generic: This is the genuine Carrier OEM contactor, manufactured to exact factory tolerances. Generic contactors often use lower-grade contact materials that pit, arc, and weld more quickly — especially under the high-inrush loads of a compressor start. OEM means longer service life and no compatibility guesswork.
  • Install difficulty: 2/5 — Shut off power at the disconnect AND the breaker before touching any terminals. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph existing wiring before removing terminals — coil polarity and load wire positions must be preserved.
  • Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered as the direct OEM fit for Carrier model PY3GNA036090AA packaged units. Verify your unit's data plate and existing contactor specifications (poles, coil voltage, amp rating) before ordering. Not sure? Our HVAC parts specialists confirm fitment before you buy — reach out 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 $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 PY3GNA036090AA?
Yes. This is the factory-specified OEM contactor for the Carrier PY3GNA036090AA. 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 PY3GNA036090AA?
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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