Lochinvar & A.O. Smith 100208181 Rollout Switch 319847-401 while the mechanical spring return

while the mechanical spring return reliably closes or opens the device in under 15 seconds during power loss

this kit simplifies the mounting process

this component performs a vital safety function by monitoring both negative and positive pressure conditions within the combustion assembly

"whooshing" sounds indicating internal bypass

Lochinvar & A.O. Smith 100208181 Rollout Switch 319847-401 while the mechanical spring returnThe Lochinvar & A. O. Smith 100208181 Rollout Switch is a critical OEM replacement part designed for high efficiency boilers and water heaters. As a 280F Manual Reset Rollout Switch, it serves as a primary thermal safety control, monitoring the burner area for flame rollout conditions. When temperatures exceed the 280 degree Fahrenheit threshold, the 100208181 switch breaks the electrical circuit, immediately shutting down the combustion process to