What amp contactor do I need for my Carrier system?

The correct replacement for Carrier model PY3PNA024060AA is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Carrier equipment which lists the model number PY3PNA024060AA.

My AC clicks but the compressor does not turn on. What is wrong?

Clicking from the outdoor unit without the compressor starting usually means a worn contactor. The contactor is the relay that sends power to the compressor. When its contacts are pitted or worn, it clicks but cannot establish a solid electrical connection. Other symptoms: visible pitting or burn marks on the contactor face, AC works intermittently, or buzzing from the contactor.

Is this contactor compatible with Bryant or Payne systems too?

Many Carrier parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

Carrier

OEM Carrier 40A Contactor 24V Coil 2-Pole for PY3PNA024060AA

Name: OEM Carrier 40A Contactor 24V Coil 2-Pole for PY3PNA024060AA
Brand: Carrier
SKU: CARRIE-PY3PNA024060AA-CONTACTOR-HN51KB024
Price: 31.20 USD
Availability: InStock

SKU: CARRIE-PY3PNA024060AA-CONTACTOR-HN51KB024 Brand: Carrier

✓ Guaranteed to fit PY3PNA024060AA — or your money back. Terms

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OEM Carrier Contactor 24V Coil 2-Pole for Model PY3PNA024060AA

This is the factory OEM replacement contactor (part number HN51KB024) for the Carrier PY3PNA024060AA packaged unit. The contactor is the high-voltage switching relay that receives a 24V signal from the thermostat and closes the circuit to power the compressor and condenser fan motor. When it fails — whether due to pitted contacts, a burnt coil, or contacts that weld shut — the result is either a system that won't turn on at all, one that won't turn off, or one that buzzes and trips the breaker. Replacing the contactor is one of the most common and cost-effective HVAC repairs available.

Specs: 2-Pole | 24V AC coil voltage | 30–40A rated contacts | Direct OEM factory replacement for part number HN51KB024
OEM vs Generic: This OEM contactor is manufactured to Carrier's exact coil resistance and contact gap specifications. Generic contactors frequently feature lower-grade contact materials that arc, pit, and fail prematurely — especially under the high inrush current of a compressor start.
Install difficulty: 2/5 — Always disconnect power at the disconnect box and breaker before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter. Photograph all wiring connections before removal. Allow 5 minutes after power-off for capacitors to discharge.
Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM drop-in replacement for the Carrier PY3PNA024060AA packaged unit. Verify coil voltage (24V) and pole count on your existing contactor's data label before ordering. If you need help confirming fitment, our HVAC parts specialists are available to verify compatibility before you purchase.

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

OEM Carrier 40A Contactor 24V Co...

$31.20

Frequently Asked Questions

Does this Contactor fit my Carrier PY3PNA024060AA?

Yes. This is the factory-specified OEM contactor for the Carrier PY3PNA024060AA. 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 PY3PNA024060AA?

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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OEM Carrier 40A Contactor 24V Coil 2-Pole for PY3PNA024060AA

OEM Carrier Contactor 24V Coil 2-Pole for Model PY3PNA024060AA

Shipping Information

Return Policy

Frequently Asked Questions