Air conditioner got rained on by accident now all lights are lit up

I am assuming this has just happened when I offer the following advise:

Go and immediately unplug the unit and do not plug it in for the next 24 hours - longer if you live in a climate with more than 75% RH. The goal here is to let the circuits completely dry before applying power. try it again after it has dried out you might get lucky

I have no knowledge of your particular machine, only from A/C's (and heatpumps) in general.

All systems I've ever came across are designed to be subjected to whatever weather conditions so I doubt the actual machine would be the problem. It would never have been approved if it can't stand some rain, snow, hail, what have you. My own A/C / heatpump is always on, even during thunderstorms.

More likely it could be a bad installation causing the problem, wrong type of cabling, inappropriate housing for electrical connections and switches, etc. This, in turn, could have damaged the machine if you have bad luck.

If you are unsure about the status of your installation, I'd advice you to contact professionals to troubleshoot and correct the problems. It is especially important to get it absolutely right when it comes to electrical installations outdoors and in wet environments.

Good luck!