Lochinvar & A.O. Smith 100208181 Rollout Switch 321042-401 including the high-durability stainless steel

including the high-durability stainless steel stem and the self-adjusting

Operational Stability: The pressure-balanced design minimizes seat hunting and ensures consistent flow modulation even during sudden pressure spikes

the Honeywell 14004898-003 consists of the repair top and insert assembly only

This specific Robertshaw ignition kit is designed and factory-calibrated for natural gas only

Full-Flow Performance: Optimized internal hardware and 1 1/8" ODF fittings minimize refrigerant pressure drop

Lochinvar & A.O. Smith 100208181 Rollout Switch 321042-401 including the high-durability stainless steelThe 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