Just want to get some initial thoughts before the repairman comes. I have a 3 year old 2.5 ton Goodman AC unit. I set the temperature to 74°F last night (AC) and woke up to a nice and chilly house. An odd noise was coming from the outside unit — almost a high pitched squeak followed by a rattle and then the unit kicks off. Several seconds later, the unit kicks on and the pattern of squeak, rattle, shut off continues. The fan is not obstructed, and spins cleanly.
It's still blowing cold air in the house and the coils appear fine and not frozen. Any thoughts?