Lennox 20J91 Flame Sensor Flame Sensor

Flame Sensor

The Flame Sensor monitors your fireplace to make sure a flame is present at all times.

The Flame Sensor not only detects flame and ensures complete combustion, it also shuts off the gas supply automatically when your system is off.

This product contains a Flame Sensor that will shut off the burner if it detects a flame from a fireplace, gas logs or any other ignition source. This device is UL approved and will help prevent serious accidents from dangerous cooking flames. The sensor is equipped with a 6' cord attached to the burner assembly. There are no wires to run between this sensor and the gas control. Simply plug into the on/off terminal located on the gas control module.

This Flame Sensor is the perfect replacement for your faulty flame sensor. This is used on models using 20K, 30K, 35K, 42J, 52J, and 60J furnaces. This flame sensor has a 3 wire harness with pigtail already attached and is easy to install.

The popular Lennox Flame Sensor is designed to provide maximum protection from a wide variety of gas appliances, ensuring flame has always been present. The Flame Sensor can be installed in 30 minutes on most natural gas or propane-powered appliances.

The 20J91 Flame Sensor Module monitors your LP (Liquid Propane) or natural gas furnace blower flames and turns off the fuel supply in the event of an extinguished flame. Part of the IntelliTemp® System, this module offers peace of mind by helping ensure that your furnace will not operate if you do not have a flame. The Flame Sensor features a wireless signal, which, when interrupted by an extinguished flame, generates either an audible beep or pulsing LED light confirmation. This provides

The Flame Sensor from Lennox is a compatible flame sensor for multi-vapor systems. This application boasts an updated design that fits easily into the vapor line between the blower and multi-vapor device.