OEM Carrier 2-Pole Contactor 24V Coil for Model CA13NA018BNGAEAA

This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier CA13NA018BNGAEAA split-system air conditioner. The contactor is a high-voltage relay that receives a low-voltage (24V) signal from the thermostat and switches line voltage to the compressor and condenser fan motor. When a contactor fails, the most common symptoms include an air conditioner that won't turn on at all, a unit that hums but the compressor never starts, or visible pitting and burning on the contactor's contact points. Replacing a worn contactor is one of the most common and cost-effective AC repairs available.

• Specs: 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for 1.5-ton R-22 split-system | OEM part number HN51KC024 | Direct drop-in replacement — no modifications required
• OEM vs Generic: This OEM contactor is manufactured to Carrier's exact electrical specifications, ensuring proper coil pull-in voltage and contact rating. Generic contactors may use lower-grade contact materials that pit and oxidize faster, leading to repeat failures within one or two seasons.
• Install difficulty: 2/5 — Always disconnect power at the breaker and verify zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor to ensure correct reinstallation.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders placed by 3 PM local time ship same business day from our stocked warehouse.

Compatibility: Designed specifically for the Carrier CA13NA018BNGAEAA 1.5-ton Comfort Series split-system condenser. Always verify the coil voltage and pole configuration on your existing contactor's label before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you order if you have any questions.