I suggest EVERYONE have a spare capacitor on hand.
If your unit isn't starting, it's likely the capacitor. (After checking that it's not the condensation float, first)
There are YouTube videos on how-to replace it.
Starting with pulling the fuse/disconnect in the box on the wall of the house, connected to the compressor unit. (The high voltage)
You discharge the cap with your screwdriver. It's not going to kill you.
Take a picture with your phone, if you think you'll mess up the wires.
It's best to just disconnect one at a time and attach it to the new one.
Save yourself having to try to sleep in a 90 degree house, till the repair guy can get there/till you can get a replacement.
Been there, done it.
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