Lennox 27J29 Limit Switch This kit includes the precision-machined

This kit includes the precision-machined lens assembly

These parts are functionally identical

preventing hazardous conditions caused by restricted venting or heat exchanger failure

Efficient Bulk Packaging: Each order contains a 5-pack of gaskets

Whether you are performing a routine AC capacitor fix or a complete HVAC repair

Lennox 27J29 Limit Switch This kit includes the precision-machinedThe Lennox 27J29 Limit Switch is a critical safety component designed for precise thermal regulation in residential and light commercial HVAC systems. This automatic reset limit control features a 7 inch insert, engineered to monitor internal heat exchanger temperatures and prevent catastrophic overheating. With a cut out temperature of 220F and a cut in temperature of 190F, this switch provides a reliable 30F differential, ensuring your furnace or