Lochinvar & A.O. Smith 100109916 Limit Control 326058-756 this switch prevents hazardous operation

this switch prevents hazardous operation by detecting venting obstructions or inducer failure

Excessive squealing during motor startup typically indicates tension loss or material degradation

High-Thermal Endurance: High-purity silicon carbide design resists oxidation and thermal shock in demanding high-cycle environments

which minimizes vibration-induced noise and prevents premature wear on the motor shaft

which functions as a breather hole to eliminate the need for external vent piping in indoor installations

Lochinvar & A.O. Smith 100109916 Limit Control 326058-756 this switch prevents hazardous operationThe Lochinvar & A. O. Smith 100109916 Dual Limit Control is a critical safety component designed for heavy duty commercial and residential heating systems. This OEM water heater part serves as a high precision manual reset limit switch, engineered to prevent hazardous overheating by interrupting the burner circuit when temperatures exceed the safe operational threshold. As a direct 100109916 replacement for legacy models 11B79 3, 9004529005, and