I have a Shaklee AirSource 3000. The on/off switch was stuck, and when a friend unplugged the unit, I couldn't get it to go back on. The on/off switch has since broke. Aforementioned friend is an engineer, and has offered to repair the switch...but we can't seem to get the unit opened. Do you have a schematic/repair manual for the unit...or do you know where I can find one? Thanks...