Bard HVAC 8406-037BX Switch excessive pitting or a cracked

excessive pitting or a cracked porcelain insulator requires a full furnace flame sensor replacement to maintain system safety and UL compliance

provided the cam profile matches the required setpoint stroke

Optimized Motor Performance: Provides the precise phase shift required for high-torque startups and continuous run-cycle efficiency

flare connections rely on a metal-to-metal seal

Bard HVAC 8406-037BX Switch excessive pitting or a crackedThe Bard 8406 037BX is a critical safety component designed for high limit temperature monitoring in HVAC blower assemblies and heat sections. This 220F manual reset temperature switch serves as a direct functional replacement for the 8406 037, ensuring seamless integration into existing Bard wall mount units and furnace configurations. Operating as a normally closed (NC) contact, this limit control switch interrupts the 24V or line voltage circuit to