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This is the factory OEM replacement contactor (part number HN53CD024) for the Carrier PF1AJB072000ABGC air conditioning system. The contactor is the high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to send line voltage to your compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed coil — the outdoor unit will not energize at all, leaving your system blowing unconditioned air or shutting down entirely on a call for cooling.
Compatibility: Designed specifically for the Carrier PF1AJB072000ABGC system. Verify coil voltage and pole configuration on your unit's data plate before ordering. Our fitment team is available to confirm compatibility — just reach out before you buy. Order today and enjoy same-day shipping on all in-stock OEM Carrier parts.