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Bard part number 3018-1187 (AA2K-05-YD2) is an OEM Bard electrical/control component used in Bard wall-mount HVAC equipment to support reliable system operation and proper control sequencing. When a control part like this fails, it can cause intermittent operation, no-start conditions, or incorrect staging, so replacing it with the correct Bard OEM part helps maintain the original wiring fit, electrical ratings, and intended performance. Verify the exact part number against your unit model and serial number or the Bard parts list for your specific wall-mount series to confirm compatibility before ordering.
* Orders less than $50 may incure a minimum order fee.