When our central heat is on auto the heat does not work. When we put the fan in "on" mode it blows constant cold air, then pulsates hot air. We don't think it is getting as hot as it should. What could be wrong?
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When our central heat is on auto the heat does not work. When we put the fan in "on" mode it blows constant cold air, then pulsates hot air. We don't think it is getting as hot as it should. What could be wrong?
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