The Ice Section Helped
https://brooksdyqi645.evercolumn.com/posts/comfort-experts-ac-repair-tips-for-hot-upstairs-rooms-in-north-fort-worth-houses
The Ice Section Helped The section on frozen coils helped. Ours iced over on a Sunday and my first instinct was to crank the thermostat lower. Glad I read this first. Turned it off, let it thaw, changed a very gray filter and it's been cooling normally