Question about Heating & Cooling
I have code 4 flashing on my 80.000 carrier furnis what is that for
Thermal ( limit ) protection switch open, could be dirty filter, stop up evaporator coil causing heat exchange to over heat. You should really have a service company check out the unit every year, that way they can check for carbon monoxide which is a odorless gas that will kill you and your family.
Posted on Nov 18, 2014
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Posted on Jan 02, 2017
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