Lennox 71W43 Limit Control (140F) 102857-03

About the Lennox 71W43 Limit Control (140F) 102857-03

Fixes on your HVAC system can be done by the inexperienced with this Lennox 71W43 Limit Control (140F) 102857-03. At PlumbersStock, we carry preferred brands and reliable parts. A limit switch contains an actuator linked to a set of contacts, and when an object makes contact with the actuator, the device makes or breaks an electrical connection.