Hello again, thanks for the information.
I have been in the business for 52 years and so far have not seen a system with a thermostat
outside that shuts down the outside unit when it gets hot (above 90F in this case). its an overheat issue I think.
What i think is going on is that the compressor itself over heats when it starts getting close to 90F and then goes off on its *internal overload... it takes 2 or 3 hours for the compressor to cool enough to come back on, that happens all by itself.
That should not begin to happen until it gets above 100F outside.
When it happens at 90F it is usually caused by a dirty condenser coil on the air conditioner
outside.... if the dogs spend a lot of time outside, there will be dog hair and dirt on the condenser coil fins, and deep **between*** the fins.
Turn the power off to the outside unit at the breaker panel or the disconnect switch on the wall next to the outside unit.
Then remove the service panels that enclose the condenser fan so that you can see the back side of the finned condenser coil. .. if the fan is on top of the unit you do not have to remove any panels as a rule.
Using a high pressure garden hose **blast**
water through each square inch of the coil until you can see water coming out the other side.... that takes about half an hour... don't get the fan motor or other electrical parts wet...
....you can wrap the fan motor in plastic sheeting to keep it dry.
After using the garden hose, let the unit sit for half an hour... put the panels back on and turn the power back on.
Let me know how that goes... thats step one, w\
We can go from there as necessary as long as you rate my answers so far *positively, there are no time limits.