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OEM Carrier Contactor 1-Pole 25A 24V Coil for PY3PNA036090NB
Carrier

OEM Carrier Contactor 1-Pole 25A 24V Coil for PY3PNA036090NB

SKU: CARRIE-PY3PNA036090NB-CONTACTOR-HN51KB024 Brand: Carrier
✓ Guaranteed to fit PY3PNA036090NB — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 1-Pole Contactor 25 Amp 24V Coil for Model PY3PNA036090NB

This is the genuine OEM Carrier contactor (part #HN51KB024) factory-specified for the Carrier PY3PNA036090NB packaged unit. The contactor is the high-voltage relay at the heart of your system's switching circuit: when the thermostat calls for cooling, the 24V control board sends a low-voltage signal to the contactor coil, which then closes the high-voltage circuit to power the compressor and condenser fan motor. A failed contactor is one of the most common reasons an air conditioner will hum but refuse to start, trip repeatedly, or simply not respond to a cooling call at all. Pitted or welded contact points are the most frequent failure mode, caused by years of electrical arcing under load.

  • Specs: 1-Pole | 25 Amp | 24V Coil | OEM Part #HN51KB024 | Factory-matched electrical ratings for PY3PNA036090NB
  • OEM vs Generic: This is a genuine Carrier OEM contactor — not an aftermarket substitute. OEM contact points meet factory arc-resistance standards, ensuring accurate switching life. Generic contactors often use inferior silver-alloy contacts that pit and weld prematurely, leading to repeat failures.
  • Install Difficulty: 2/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removal. Swap wires one at a time to avoid miswiring. Test for continuity after installation before restoring power.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier model PY3PNA036090NB. Always verify your unit's data plate matches the 1-pole, 25A, 24V coil specification before ordering. Our parts specialists are available to confirm fitment — contact us before you order if you have any questions. Order today and get back to comfort 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 PY3PNA036090NB?
Yes. This is the factory-specified OEM contactor for the Carrier PY3PNA036090NB. 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 PY3PNA036090NB?
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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