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Bard 8620-025 is an OEM defrost thermostat replacement kit used on Bard heat pump wall mount and packaged HVAC equipment to help control the defrost cycle and prevent outdoor coil icing during cold-weather operation. When a defrost thermostat fails or drifts out of calibration, units can short-cycle in defrost, ice up, or lose heating capacity, so replacing it with the correct Bard kit helps restore proper defrost initiation and reliable heating performance. Because this is a Bard factory part kit, it is intended to match original wiring and mounting requirements, but you should verify the exact unit model and serial number compatibility in the Bard service literature before ordering.
* Orders less than $50 may incure a minimum order fee.