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OEM Carrier Contactor Replacement for PH12NA036000AGAA Condenser
Carrier

OEM Carrier Contactor Replacement for PH12NA036000AGAA Condenser

SKU: CARRIE-PH12NA036000AGAA-CONTACTOR-HN51KC024 Brand: Carrier
Guaranteed to fit Condenser — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Contactor Replacement for PH12NA036000AGAA Condenser

The contactor is the high-voltage switch that powers your Carrier PH12NA036000AGAA condenser. When the thermostat calls for cooling, the 24V control circuit energizes the contactor coil, pulling its contacts closed to feed line voltage to the compressor and condenser fan. Because it cycles thousands of times each season, it is one of the most common failure points in any outdoor unit. A failing contactor shows clear symptoms: the outdoor unit won't start while the thermostat calls for cool, a chattering or buzzing from the contactor, contacts that weld shut and keep the compressor running nonstop, or pitted, blackened contacts that arc and overheat. This genuine OEM contactor is matched to your unit's amperage and coil specification — typically a single- or double-pole device with a 24V coil and silver-alloy contacts rated for the FLA and LRA your compressor draws. Why OEM matters here: aftermarket contactors frequently use undersized or lower-grade contact material that pits and burns far faster under the high inrush current of a starting compressor. Once contacts pit, resistance rises, the surface overheats, and the contactor can weld closed — leaving the compressor energized continuously and risking serious damage. OEM silver contacts and a correctly rated coil ensure clean make-and-break for the life of the part. Install difficulty: 2 of 5. Tools: 1/4" nut driver, insulated screwdriver, multimeter, and a phone photo of the wiring before you start. #1 SAFETY WARNING: line voltage is present — shut off the outdoor disconnect AND the breaker before removing any wires, and verify zero volts with your meter. Ships same business day from our stocked warehouse on orders placed before 3 PM CST. Backed by a 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.

Compatibility

This part is compatible with Carrier model PH12NA036000AGAA. Always verify the part number against your unit's data plate before ordering.

Why Choose OEM?

OEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.

Shipping & Returns

Same-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.

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 PH12NA036000AGAA Condenser?
Yes. This is the factory-specified OEM contactor for the Carrier PH12NA036000AGAA Condenser. 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 PH12NA036000AGAA Condenser?
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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