104f right now and big flooding rain storms heading this way, they might go a bit to the south and miss us. but there building this way. anyhow On my outside ac unit, a tiny plastic cover that is in the center and the motor for the fan is right underneath it. well its been missing and the bearings were squealing not bad i could hear a high pitched whine, so i made up a cover that keeps the sun off the metal that the motor bearings are close up against. it made a big difference. no whining sound, it dont make a clunk sound when shutting off, and startin up easer, cant believe what a tiny cover makes on them things.Its almost 20 years old, were getting a new window unit for the place and keep the central air but not use it. id rather fix or replace a window unit than a central a/c unit that old, i just use for back up, till i get $$ for a new system.