Living along the hot Gulf Coast we need good AC.The upstairs unit in my 1995 house had to be recharged in 2003 by AC Guy (AG) and a few weeks later the downstairs unit fan wouldn't turn on even when the thermostat batteries were replaced. AG said that the fan was burnt out and replaced it and all was well.A few weeks ago the upstairs fan would go from blowing vigorously to a puny exhaust.I would turn it off and in a few hours on restart it was as strong as ever for a while and then revert to puny state.AG came out and felt the motor which was hot (17 hours of continuous running) and said I needed a new motor.I had to go out of town so i postponed it...and upon further reflection called home and had my wife turn both units on .The 4 hour rest produced a strong blast from the upstairs unit which is measuring 81-83 in various ducts and the downstairs one is 50-53 in various ducts.AG hadn't measured duct exhaut temp. I suspect that because the lower one doesn't blow cold that it runs too long,overheats and then can't push hard.AG has been contacted,refuses to only recharge with freon and insists a new motor is needed
Thanks for your feedback
Hal