the internal contacts have likely failed and the switch requires replacement

OEM Durable Construction: Built to original manufacturer specifications to withstand high-cycle environments in residential furnaces

Eliminate Hot/Cold Spots: Enhances HVAC zone control by sensing temperature in the areas that matter most to the occupant

or burner misalignment

000 ohms at 77°F (25°C)

Schneider Electric (Erie) VM3417 Valve Body 30067439-890 the internal contacts have likelyWhen your hydronic system demands precise flow regulation, the Schneider Electric (Erie) VM3417 Valve Body provides the reliable, industrial grade performance required by technical contractors. This 1" sweat modulating valve body is engineered for both chilled and hot water applications, featuring a 3 way mixing configuration that supports a high 7. 5 Cv flow coefficient. Built with a robust forged brass body and designed for modulating control, the