Lennox Furnace Heat Sensor

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

Lennox furnace heat sensor.

The fix was as simple as cleaning up the dirty ig. Find your owner s literature like product manuals by searching your product s model number. As quiet as they are efficient lennox furnaces also startup and run perfectly quietly helping to preserve the peace and quiet of your home. 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.

There will usually be a light switch toggle switch on or near your furnace. In our example will show a gas fired furnace but you can find flame sensors in boilers and other gas burning appliances. Then if possible remove the sensor from the furnace. Lennox gas furnaces contain an important safety component known as a flame 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. Looking for more information about your lennox product. A dirty flame sensor may cause your furnace to function improperly. Fast same day shipping.

Impacting certain mini split heat pump products. To clean the sensor turn off power to the furnace at the breaker box. This video shows how i fixed my lennox furnace that did not want to start burners failed to ignite error. Lennox gas and oil furnaces are engineered to deliver perfect warmth efficiency and energy savings.

Repair your lennox furnace sensor thermistor for less. If the flame sensor can t sense the flame because it s too dirty the furnace may shut itself off. If the flame sensor is defective the furnace may not heat. Delivering precise comfort and temperature control lennox furnaces can keep your home to within 0 5 degrees of your ideal temperature.

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