Description
The Lennox 33J34 Auto Limit Switch is a small but essential device that is intended for use only on Lennox brand HVAC systems. This automatic limit switch has a disc-type button with a normally closed position. It works by constantly measuring the temperature inside your Lennox equipment and cutting off the electrical circuit in case the temperatures go beyond the range of 140°F to 170°F. This safety feature plays a key role in protecting your HVAC equipment from possible overheating and its subsequent failure. The auto limit switch helps to prevent malfunctions and also helps to increase the longevity of your Lennox HVAC systems.









