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Old 03-02-2008, 09:13 AM   #1
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Luxaire Furnace shuts off intermittently


I have an approximately 4 year old Luxaire furnce that heats the house fine at times, but sometimes once the thermostat kicks to on the furnace starts up and then shuts down within a few minutes. After that the house gets cold because the thermostat thinks the furnace is on, but it's not.

Please help, we're getting cold.

Aaron

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Old 03-02-2008, 08:34 PM   #2
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Luxaire Furnace shuts off intermittently


Are you sure the t-stat is shutting down the furnace? It sounds like your flame sensor is dirty. Do the burners light and then drop out after about 3 sec.? You need to watch the cycle of operation and report back.

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Old 03-02-2008, 09:21 PM   #3
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Luxaire Furnace shuts off intermittently


Have someone trip your thermostat while you are watchiing your furnace and report back exactly what your furnace does. There are an abundance of threads about how to clean dirty flame sensor.
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