sounds WAY overcharged to begin with but possibly a sticking reversing valve. what is the standing pressure, 407 should be close to r22. If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79
that mean Communication fault between indoor and
outdoor units. Some wire is cut. check wires from indoor to out door unit. Open indoor unit and check cleme open outdoor unit and check it too
Condenser coils, Air filter, blower motor - all those things needs to be checked out, then pressures of the freon level. I made a video, where everything seems to be fine, so my solution, was to install an extra timer to the unit, seemed that customer did not want to listen about thermostat setting. hope that helps You.
Check to see if the compressor is running. If it is not running you may have a bad start relay or capacitor that is causing your unit to not turn on. A lot of AC motors need a kick in the pants to start and those items are like cattle prods if you know what I mean.
