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OEM Carrier Contactor 1-Pole 25A 24V for PY3PNA036090AB
Carrier

OEM Carrier Contactor 1-Pole 25A 24V for PY3PNA036090AB

SKU: CARRIE-PY3PNA036090AB-CONTACTOR-HN51KB024 Brand: Carrier
✓ Guaranteed to fit PY3PNA036090AB — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Contactor 1-Pole 25A 24V Coil — Model PY3PNA036090AB (HN51KB024)

This is the factory OEM replacement contactor for the Carrier PY3PNA036090AB split-system heat pump and air conditioning unit. The contactor is the high-voltage relay that receives the 24V signal from your thermostat and closes the circuit to power the compressor and condenser fan. When the contactor fails — whether from pitted contacts, welded poles, or a burned coil — the outdoor unit simply won't start, leaving you with warm air and a spinning indoor blower but no cooling or heating output.

  • Specs: 1-Pole | 25A FLA (Full Load Amps) | 24V 50/60Hz Coil | OEM Part# HN51KB024 | Direct drop-in replacement — no modifications required
  • OEM vs Generic: OEM contactors are manufactured to Carrier's exact contact gap, coil pull-in voltage, and silver-alloy contact specification. Generic contactors often use lower-grade contact materials that arc and pit faster, especially under the high cycling loads of a heat pump application.
  • Install Difficulty: 2/5 — Always disconnect power at the breaker and verify zero voltage with a multimeter before beginning. Photograph all wiring before removing the old contactor. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. The contactor snaps or screws directly into the existing mounting position.
  • Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier PY3PNA036090AB packaged heat pump unit. Verify your unit's data plate lists a 1-pole, 25A FLA contactor before ordering. Cross-reference OEM part number HN51KB024 to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you order — contact us anytime.

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 PY3PNA036090AB?
Yes. This is the factory-specified OEM contactor for the Carrier PY3PNA036090AB. 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 PY3PNA036090AB?
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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