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This is the factory OEM replacement contactor for the Carrier PY3GNAA36090NA packaged unit. The contactor is the high-voltage relay that receives the 24V signal from your thermostat and closes the circuit to energize the compressor and condenser fan motor. When the contactor fails — whether due to pitted contacts, a burned coil, or a stuck plunger — the result is typically an air conditioner that refuses to start, buzzes loudly without cooling, or trips the breaker repeatedly. Replacing it with the correct OEM part (HN51KC024) ensures precise coil voltage response and contact rating, protecting your compressor investment.
Compatibility: Engineered specifically for the Carrier PY3GNAA36090NA packaged unit. Verify OEM part number HN51KC024 on your unit's wiring diagram or data plate before ordering. Our team is available to confirm fitment — just reach out before you buy. In stock and ready to ship today.