 Then the next step would be to remove the pan, replace the solenoid pack. I believe all those come in one unit when you do those and replace the solenoids and then put it back on. And then on some of those, you have to reprogram the system when you put that back on. But it will all start with do you have any trouble codes stored? And on the window, it would be to pull the panel off and check for codes inside there.