Hello, I have a Goodman Manufacturing Company Indoor Airhandler installed in my attic. August '08 the air conditioning for the upper floors stopped working. The outside heat pump would start - but the indoor fan never began circulating cool air - and a burning electrical odor seemed to be in the air. (I think the odor came from hot refrigerant lines heating up some plastic foam insulation on them.) I tried to simply run the circulator fan by itself - and just a humm came from the attic - but the fan itself would never come on. So, I simply turned the fuse breakers off for that system and decided we did not need AC upstairs for the the coming cooler months - and take care of it later (now). Several years ago when moved into this house, we had a HVAC guy replace the ciruclator fan (he said he put in a new motor - the whole job was about $500). He said to keep the filters replaced every month .. and that would keep the motor clean and improve performancd ... and I have tried to keep that done. I opened up the air handler and could manually spin the fan blower blades. There seemed to be a lot of moisture in the box .. but that may be normal for a AC unit. Does the moisture cause some components to burn / wear out more quickly? That is the extent of my diagnosis. Is there a relay or switch that may be easy or cheap enough to check before I call a service company? I will get more info about the specs of the motor and system. Thanks.