Nordyne 626435R Limit Switch high resistance or an open

high resistance or an open circuit indicates the lead requires replacement

This SPST furnace rollout switch is engineered to interrupt the burner circuit when it detects excessive temperatures caused by poor drafting or flame rollout conditions

ensuring seamless integration into existing burner manifolds without field modifications

it should be housed within an approved electrical enclosure or junction box if exposed to direct moisture or harsh weather conditions

Nordyne 626435R Limit Switch high resistance or an openThe Nordyne 626435R Auto Limit Switch is a critical OEM safety component engineered for precision temperature monitoring in gas fired and electric furnaces. This high limit safety control features a 3 1 8 inch insert length and is calibrated to open between 200? F and 220? F. As a primary safety device, it prevents heat exchanger damage and hazardous conditions by interrupting the burner circuit if the plenum temperature exceeds specified tolerances.