AC tripping in extreme heat...need suggestions!

When cleaning the rear coil, protect the fan motor from water spray. The bottom of the motor is open, too much water in the motor and it will short out. A plastic bag around with tape usually protects it.

The sheetmetal shroud around the rear fan is usually attached with screws and you can slide it forward to get to the rear coil better, you"ll be amazed sometimes that the unit can work at all as stopped up as the coil is