Bard HVAC 8406-037BX Switch flare connections rely on a

flare connections rely on a metal-to-metal seal

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

Key Benefits for Contractors:

this gasket is often a component of the comprehensive Type E repair kit

Bard HVAC 8406-037BX Switch flare connections rely on aThe 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