All who own 2005 (maybe some 2004) units who have the bank of 3 master switches. Mine are red and gray/white panel stacked up and down.
My Top Switch is the house switch, the middle switch is a battery bank tie in; and the bottom one is the chassis switch if memory serves.
In neither manual (APEX or Limited SE) I have on this coach does it describe or mentioned the master turn on switches.
My question is what does the middle switch do, should it be "off or on" when the engine is running (ignition on), or what position should it be in. It's connected to a solenoid I believe, and I have not traced out the wires. I was told when we purchased it should always be off except when I wanted to tie the house batteries in with the chassis batteries to bring them up enough to start the coach, but before I started the coach, that switch should be off. If I failed to turn it off, I would fry the big expensive fuse up on the top of the back of the battery compartment.
Does anyone have any information on this switch, preferably in writing form WRV if possible. Here is what EM said to me in an e-mail: -" I don't know of any docs specific to the master switches. Our units have the 3 switches in a vertical assembly w/the combo switch in the middle. I've talked to owners who rode for over a year w/the center switch ON and no adverse affects they noticed."
So this is open to the field of owners who have this arrangement or these years coaches, maybe more of them, maybe less. This should create some lively posts, as we have a number of well versed Alpine master techs here.