Power Bill Shock
https://zukoski-group.chbe.illinois.edu/index/index.php/Getting_Your_AC_Ready_for_Summer_With_a_Comfort_Experts_Plan_to_Avoid_North_Fort_Worth_AC_Repair_Calls
Power Bill Shock Totally agree about power bills being a warning sign. Ours jumped almost 30 percent in one month with no change in how we live. Turned out the outdoor coil was caked with grass clippings from the mower