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This is the genuine OEM Carrier contactor (part number HN53HF122), the factory-specified replacement for the Carrier 06EW033510 commercial chiller and applied HVAC equipment. The contactor is a high-voltage switching relay that energizes and de-energizes the compressor and motor circuits under command from the control board. When a contactor fails, symptoms typically include the system completely failing to start, burned or pitted contact surfaces causing intermittent operation, chattering or audible buzzing under load, or visible arc damage to the contact tips — all of which result in loss of cooling or heating capacity.
Compatibility: Designed for the Carrier 06EW033510 commercial HVAC platform. Verify coil voltage (120V), pole count (3-pole), and amperage rating against your unit's nameplate data before ordering. Our technical team is available to confirm fitment — contact us before you order if you have any questions.