providing a rigid mounting solution that prevents mechanical stress on the gas valve and burner assembly

this model is an automatic reset switch

Is the EK-304S compatible with R-410A systems

Which flanges are compatible with the 3JES

Common symptoms include the furnace burners igniting for 2-5 seconds and then immediately shutting off

Lennox 18J37 Limit Switch providing a rigid mounting solutionThe Lennox 18J37 Limit Switch is a critical safety component engineered for high performance thermal regulation in residential and light industrial furnaces. As a normally closed disc style limit control, this genuine OEM Lennox replacement part is specifically designed to prevent heat exchanger damage by interrupting the burner circuit if internal temperatures exceed safety thresholds. Featuring a yellow color coded sleeve for rapid field