Lennox Furnace Heat Sensor

Lennox gas furnaces contain an important safety component known as a flame sensor.

Lennox furnace heat sensor.

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. To avoid danger it is very important to shut off the power to your furnace or any other appliance prior to making any repairs. Pilot light ignites but the flame dies out right away. 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.

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. This video shows how i fixed my lennox furnace that did not want to start burners failed to ignite error. Find your owner s literature like product manuals by searching your product s model number.

If the flame sensor is defective the furnace may not heat. As quiet as they are efficient lennox furnaces also startup and run perfectly quietly helping to preserve the peace and quiet of your home. 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.

There will usually be a light switch toggle switch on or near your furnace. If the flame sensor can t sense the flame because it s too dirty the furnace may shut itself off. The fix was as simple as cleaning up the dirty ig. Impacting certain mini split heat pump products.

365 day right part guaranteed return policy. Zoning comfort sensor temperature relative humidity co2 display setpoint fan control after hours override button zone damper fan and heat control cat. The flame sensor monitors the burner to detect whether or not a flame is present. Fast same day shipping.

A dirty flame sensor may cause your furnace to function improperly.