This specific door plug button is built to withstand the high-temperature fluctuations characteristic of heavy-duty electric unit heaters

Common Questions How do I test the White-Rodgers 3L09-13 for continuity

the Danfoss 117U6002 serves as a direct-fit replacement for specified Secop and Danfoss compressors

and proper discharge air temperatures

For a proper seal

White-Rodgers 3L09-10 Limit Switch This specific door plug buttonAs a field tech, you know that a failing furnace high limit switch can shut down a call before it even starts. The White Rodgers 3L09 10 is a specialized board mount limit control engineered for precision sensing in gas and electric heating systems. Featuring a 1 2" bimetal disc, this component provides high speed contact separation with an open on rise switch action. It is factory calibrated to trip at a 200 degrees F fixed open temperature and reset