Lennox forced air furnace(about 6 years old) stops heating when the outdoor temp

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    Thomas C Smithposted 4 months ago

    Lennox forced air furnace(about 6 years old) stops heating when the outdoor temperature is cold

    Early in the morning, Lennox furnace does not run blower.  After 1-2 hours, it starts functioning properly and works for the entire day.  It fails at around 7 a.m. and starts working around 9 a.m.  I think it's related to the outdoor temperature.  Thoughts?

 
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