Furnace repair needed: I need help figuring out what is wrong. Furnace problems: No heat: No,Not enough heat: No,Unusual noises from inside: No,System keeps cycling: No,Pilot light is out: No,I am not having any issues: No,Other: no cold air. Fuel source: I'm not sure. Furnace location: Other (in the side ). Building height: Single level building. Type of property: Home.