Lennox Furnace Heat Sensor

The flame sensor monitors the burner to detect whether or not a flame is present.

Lennox furnace heat sensor.

If the flame sensor is defective the furnace may not heat. Impacting certain mini split heat pump products. This video shows how i fixed my lennox furnace that did not want to start burners failed to ignite error. Pilot light ignites but the flame dies out right away.

To avoid danger it is very important to shut off the power to your furnace or any other appliance prior to making any repairs. Find your owner s literature like product manuals by searching your product s model number. Then if possible remove the sensor from the furnace. In our example will show a gas fired furnace but you can find flame sensors in boilers and other gas burning appliances.

To clean the sensor turn off power to the furnace at the breaker box. There will usually be a light switch toggle switch on or near your furnace. 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. Repair your lennox furnace sensor thermistor for less.

Looking for more information about your lennox product. The fix was as simple as cleaning up the dirty ig. As quiet as they are efficient lennox furnaces also startup and run perfectly quietly helping to preserve the peace and quiet of your home. 365 day right part guaranteed return policy.

If the flame sensor can t sense the flame because it s too dirty the furnace may shut itself off. Delivering precise comfort and temperature control lennox furnaces can keep your home to within 0 5 degrees of your ideal temperature. Fast same day shipping. Lennox gas furnaces contain an important safety component known as a flame sensor.

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