fan on outside unit not rotating
Neither myself or my husband are mechanically inclined. He noticed yesterday that the outside Weather King unit that heats our basement was running but the fan wasn't rotating. He came inside and saw that the furnace was running and seemed to be providing heat. He turned the unit off at the thermostat because he thought that it wasn't a good idea for the unit to be running but the fan not working. When I came home today it is 65 degrees in the basement. We keep it at 72 degrees, so obviously the unit was heating even if the fan wasn't rotating.
I will call for a service tech tomorrow but in the meantime is it safe to use? It's about 4.5 years old.