Lennox Furnace Heat Sensor

Typically the flame sensor comes in the form of a rod that can be found near the back of the furnace right in the path of the burner.

Lennox furnace heat sensor.

Repair your lennox furnace sensor thermistor for less. In our example will show a gas fired furnace but you can find flame sensors in boilers and other gas burning appliances. 365 day right part guaranteed return policy. Fast same day shipping.

There will usually be a light switch toggle switch on or near your furnace. Then if possible remove the sensor from the furnace. Lennox gas furnaces contain an important safety component known as a flame sensor. This video shows how i fixed my lennox furnace that did not want to start burners failed to ignite error.

Impacting certain mini split heat pump products. If the flame sensor is defective the furnace may not heat. Zoning comfort sensor temperature relative humidity co2 display setpoint fan control after hours override button zone damper fan and heat control cat. Delivering precise comfort and temperature control lennox furnaces can keep your home to within 0 5 degrees of your ideal temperature.

Lennox gas and oil furnaces are engineered to deliver perfect warmth efficiency and energy savings. The fix was as simple as cleaning up the dirty ig. The flame sensor monitors the burner to detect whether or not a flame is present. A dirty flame sensor may cause your furnace to function improperly.

As long as the component senses the flame it sends a message to the main furnace control board telling it to keep the main burner on and the gas valve open. Looking for more information about your lennox product. To avoid danger it is very important to shut off the power to your furnace or any other appliance prior to making any repairs. If the flame sensor can t sense the flame because it s too dirty the furnace may shut itself off.

Pilot light ignites but the flame dies out right away.