Lennox 47L19 Limit Switch 322838-752 With its backlit full-color touchscreen

With its backlit full-color touchscreen interface and 7-day programming capability

you know that sacrificial rods are a constant maintenance headache

Can I use standard poly tubing instead of the OEM 4654

Versatile Compatibility: Designed to manage unit heaters

if the valve shifts manually or with a magnet but fails electrically

Lennox 47L19 Limit Switch 322838-752 With its backlit full-color touchscreenThe Lennox 47L19 Limit Switch is a critical OEM replacement part designed for precise thermal regulation in residential and commercial furnaces. As an auto reset limit switch, this 36T series disc style component operates on a normally closed circuit, ensuring the burner assembly remains functional only within safe operating parameters. When the internal plenum temperature reaches the 185F high limit threshold, the switch opens, breaking the circuit