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This is the OEM factory-specified contactor for the Carrier PY1PEB060115AAAA packaged unit. The contactor is the high-voltage relay that the thermostat's 24V control signal energizes to switch line voltage to the compressor and condenser fan motor. When this part fails, the most common symptoms are the system not turning on at all, the compressor humming but not starting, or visible pitting and burning on the contact points. Replacing the contactor is one of the most common and cost-effective HVAC repairs you can perform.
Compatibility: Engineered and factory-matched for the Carrier PY1PEB060115AAAA packaged unit. Always confirm the OEM part number printed on your existing contactor's label matches HN52KC025 before ordering. Have questions about fitment? Our technical team is available to verify compatibility before you buy — same-day shipping available on all in-stock orders.