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Lennox furnace heat sensor.
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To avoid danger it is very important to shut off the power to your furnace or any other appliance prior to making any repairs.
A dirty flame sensor may cause your furnace to function improperly.
To clean the sensor turn off power to the furnace at the breaker box.
Pilot light ignites but the flame dies out right away.
Lennox gas furnaces contain an important safety component known as a flame sensor.
The flame sensor monitors the burner to detect whether or not a flame is present.
Then if possible remove the sensor from the furnace.
Zoning comfort sensor temperature relative humidity co2 display setpoint fan control after hours override button zone damper fan and heat control cat.
Lennox gas and oil furnaces are engineered to deliver perfect warmth efficiency and energy savings.
Repair your lennox furnace sensor thermistor for less.
There will usually be a light switch toggle switch on or near your furnace.
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.
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.
Delivering precise comfort and temperature control lennox furnaces can keep your home to within 0 5 degrees of your ideal temperature.
The fix was as simple as cleaning up the dirty ig.
If the flame sensor can t sense the flame because it s too dirty the furnace may shut itself off.
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As quiet as they are efficient lennox furnaces also startup and run perfectly quietly helping to preserve the peace and quiet of your home.
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If the flame sensor is defective the furnace may not heat.