Question about Heating & Cooling
My furnace is a lennox whisper heat, we changed the control module so its brand new and a new flame sensor, the furnace ran fine but after about 2 hours started blowing cold air again
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Posted on Jan 02, 2017
You can sand the flame sensor but it sounds like another problem. Sounds like a limit switch or something in the control circuit, You need to have a service tech look at this. Ask for free estimate on repair. I have worked on hundreds of these units and they are sometimes tricky to work on. Lenox has come up with new controls for the whisper heat furnace to replace the old ones. If the flame sensor is bad the unit will try to light a few times and lock out and you ahve to kull power to the furnace to reset. If this is whats happening clean the sensor nd you should be ok If not you need help from a service tech.Rus
Posted on Nov 11, 2009
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