I have an Invert Mini that i used to use as a backup gun. It has been sitting for about a year. I went to shoot it today and it wont fire. I turn it on and the light blinks green and eventually turns to orange/red blinking. I changed the battery twice and still the same issue. No solenoid clicking or firing. I have tried everything. What could it be?
It could be a short in the board if it's not the battery itself.
Do you remember if you cleaned the upper board/eyes before you stored it? There could be a lot of old paint on the board causing problems. Also make sure the solenoid is still plugged into the board and that the wires are in good shape.