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• 8406-137 OBSOLETE

• OVERFLOW SWITCH

The Bard 8406-137 overflow switch is an OEM safety device used in select Bard wall mounted HVAC equipment to detect condensate overflow conditions and help prevent water damage by interrupting operation when the drain pan or condensate system is not draining properly. This factory replacement overflow switch assembly restores the original protective function that can shut the unit down on a high water condition, making it a smart fix when troubleshooting nuisance shutdowns, drain clogs, or failed condensate safety circuits. For best results, verify your unit model and wiring match the Bard parts manual for your specific series before ordering, since overflow switch usage can vary by model configuration.