The 3/16-inch diameter provides the necessary rigidity for precise mechanical movement while remaining malleable enough for field bending and threading

serving as a direct solution for ignition failures or intermittent "lockout" codes caused by carbon buildup or porcelain cracks

By optimizing the torque during startup

maintaining the original unit's safety certification

This limit switch is a primary safety device

Bard HVAC 8402-074BX Limit Switch The 3/16-inch diameter provides theThe Bard HVAC 8402 074BX Limit Switch is a critical high limit safety control engineered for Bard wall mount and packaged units. As an OEM L170 7F limit switch, this component is designed to break the heating circuit if internal temperatures reach a 170F threshold, protecting the heat exchanger and blower assembly from thermal damage. This model features a manual reset mechanism, requiring a technician to physically inspect the system and clear the