check the evaporator and see if it's clogged maybe that could lead to a lack of air flow from restriction not heating or cooling properly. Cause you say it runs but doesn't blow cold or hot air, make sure the furnace runs a full cycle watch it make sure it lights and runs for a full cycle. it would be hard to say since you say it doesn't do anything but blow room temp air.
Answered by
Ayeshakhan
at
May 7, 2010 02:45 AM
