How To Troubleshoot A Lennox Elite Series

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By Meredith Jameson

The Lennox Elite series of furnaces offer up to 95 percent annual fuel utilization efficiency, which indicates how well the unit converts fuel into energy. High AFUE percentages indicate high energy efficiency. In addition, the Elite furnaces are Energy Star rated and many of the units can be combined with electric heat for dual fuel capability, which can also reduce energy costs and increase overall energy use. Once installed, the Elite furnace should operate well with regular maintenance and care, but if you have questions or problems with the unit, some troubleshooting may be helpful.

Mute the speaker Listen to this using a male or female voice M/F Connect the Lennox Elite furnace to a live power supply and plug it in firmly. Replace the fuse or reset the circuit breaker if needed.

Mute the speaker Listen to this using a male or female voice M/F Turn on the main power switch to "ON" if the furnace has power but does not operate. Turn on the gas valve and turn the room thermostat to a higher temperature than the current ambient temperature.

Mute the speaker Listen to this using a male or female voice M/F Turn off the Elite furnace and unplug if the furnace is working but heat is limited. Open the front access panel and remove the filter. Clean the filter with water and air dry thoroughly. Restore the filter in place. If the filter is damaged, replace with a new filter, which you can purchase at most hardware stores.

Mute the speaker Listen to this using a male or female voice M/F Examine the furnace if the motor seems to be working constantly or the temperature is not accurate. Remove potential obstructions from around the vents and grilles. Turn off the furnace. Open the front access panel and use a soft brush to clean the blower wheel. Clean out the condensate trap, which is located above the drain, and empty the drain if water is collecting in the bottom.

Mute the speaker Listen to this using a male or female voice M/F Contact Lennox for assistance if necessary.

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