Unplug the CoolBot. Unplug that air conditioner.
This is not a CoolBot problem.
Most likely, the reason is that something has shorted out on the BACK MOTOR CONTROL CIRCUIT BOARD of the air conditioner.
(a) It could just be water that's splashed onto the circuit board. (then dry it off and it will start working again)
(b) It could be corrosion that's grown up on the circuit board and is now shorting out two different things (clean that off and you should be good to go again)
(c) It could be corrosion in the wiring harness (unplug the wiring harness from the circuit board and blow into it and scratch the plug points with a brush and you should be good to go again)
(d) It could be something that has just "gone bad" with that circuit board (then you need to order a new one.) You need to know the model number of your air conditioner and then you can probably call a bunch of places, but the one I know about is called "repairclinic.com".
You can't leave the air conditioner plugged in, because the compressor will run and run and run... but there is no fan running to cool OFF the compressor so it goes into "thermal overload" eventually it stops...