AC Problems in Phoenix

Hello All,

I’m a dasher in the Phoenix area and my dear Prius can’t stay cool. As long as the temperature is 106 degrees and below it’s fine. But once above that point, all I get is hot air.

Here’s what I’ve done so far in order:
Swapped out blower motor (original one died)
Had a local shop recharge the freon with stop leak
Changed out all fuses and relays related to AC for brand new ones
Replaced inverter coolant water pump


My buddy that works on it from time to time still thinks it may below on refrigerant but when the AC works , it’s ice cold. Once it gets to the stopping point temperature wise, I have to turn the car off for a few minutes and pray that the ac works when I turn it back on.

Any ideas of what could be going on? Please help.

Thank you in advance