The Ice Section Helped
https://www.mediafire.com/file/vb9g5zytt5azzih/pdf-40299-37737.pdf/file
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