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Bard 8406-085 - Door Switch Pilot Duty

The Bard 8406-085 Door Switch Pilot Duty is an OEM safety interlock switch used on Bard HVAC equipment to help prevent the unit from operating when an access panel or service door is open. Pilot duty door switches are commonly used in control circuits to interrupt the call for operation when the cabinet is opened, supporting safer service work and reducing the chance of unintended run conditions. If your original door switch is intermittent or not making consistently, replacing it with the correct Bard 8406-085 helps restore proper interlock function and dependable control response; confirm wiring and mounting match your unit’s parts list before ordering.


  • Technical Specifications
  • Product number: 8406-085
  • Manufacturer description: Door Switch Pilot Duty
  • HTS Code: "8415.90.8085"

$17.00 *

* Orders less than $50 may incure a minimum order fee.

This Part is Used in These Models ℹ️