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• S910-1977 OBSOLETE

• OVERFLOW SWITCH ASSEMBLY

The Bard S910-1977 overflow switch assembly is an OEM safety control used in Bard wall-mounted and packaged HVAC equipment to help protect the unit from condensate backup. When the drain system is restricted and the water level rises, this switch is designed to signal the unit controls to stop operation, helping prevent water overflow, nuisance leaks, and damage to electrical components. If you are troubleshooting repeated condensate pan overflow, intermittent shutdowns tied to drain issues, or a failed float/switch, replacing with the correct Bard S910-1977 assembly helps restore proper condensate protection and keeps the unit running as intended; always confirm part number match to your specific Bard model and serial before ordering.