It could be a coincidence, but by all means have the power company come check that they did the install correctly, assuming that costs nothing.
Also, flip all the breakers off then back on. Sometimes one will trip but it's not obvious by looking at it.
After that it's time to investigate the cooling system, starting with the outside condenser unit that's not coming on. It could be as simple as a bad capacitor on the fan motor.
Also, flip all the breakers off then back on. Sometimes one will trip but it's not obvious by looking at it.
After that it's time to investigate the cooling system, starting with the outside condenser unit that's not coming on. It could be as simple as a bad capacitor on the fan motor.