detecting clogged filters

NEMA 1 Enclosure: Protects internal components from dust and debris while providing standard knockout access for 1/2-inch conduit

This part is compatible with a wide range of Miller

meeting MIL-PRF-25567 standards

Durability: Constructed with components resistant to moisture and flue gas byproducts often found in the inducer transition

Lennox 79J89 Limit Switch detecting clogged filtersThe Lennox 79J89 Limit Switch is a critical OEM replacement part designed for precise thermal regulation in Lennox residential and commercial furnaces. This 140 170F AUTO Limit Switch functions as a primary safety mechanism, monitoring internal plenum temperatures to prevent heat exchanger damage or unsafe operating conditions. Engineered with a 170F cut out temperature and a 140F cut in temperature, this automatic reset limit switch ensures the