PS2 turns on fine when disk tray is open but the reset button turns red from green and stops working

Here's a pretty good guess what happened... All of the Windex products are mostly water. You probably got some of the Windex onto the board of the PS2. Now this isn't a problem until it is energized. Once you turned it on, the windex which is mostly water probably shorted out your board instantly. There are a few things you can try though. Open up your console and try to dry the area with a hair dryer. After it appears dry, check to see it there is any corrosion anywhere you see metal. If there is, clean those areas with a q-tip and isoproply alcohol. Then you will want to let the parts air dry. Repeatedly hitting it with the hair dryer can shrink wires inside the system and can cause them not to function. See if that fixes the problem. If not, you may need to prepare your PS2 for a proper burial. And next time you need to clean the fan, use some sort of vacuum to suck the junk out from the back. Hope this helps. Good luck.