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This OEM contactor (part number HN53CB115) is the factory-specified replacement for the Carrier C48A202012 packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the control board and closes to energize the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or a stuck plunger — the system will either fail to start entirely, run continuously without shutting off, or trip the breaker repeatedly. Replacing the contactor is one of the most common and cost-effective AC repairs available.
Compatibility: Engineered specifically for the Carrier C48A202012 packaged unit. Verify pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our parts specialists are available to confirm fitment — order with confidence and get your system back up and running fast.