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Did you remember to flip the battery disconnect breaker so that the batteries are back "in the loop" again? When you take out the batteries it goes automatically to "store" position. Check that and be sure you didn't drop out a cable that didn't get reconnected OR hook up a positive feed cable to the negative side. OR check to be sure you have the batteries wired up correctly. Those are the main things that would cause this, besides a bad disconnect relay or blown fuse on the relay. Check those other things first and then get back to me if you need more help. A small digital multimeter is very helpful here for testing. About $15 or so at most automotive or hardware stores. Hope that proves helpful here. Please get back to me if you need more as all follow ups are included in our fee. R.J.
There is usually a small panel on the wall by the door or above the door or in an overhead and most are made by Intellitec and say that on the panel. Usually, two switches........one for the start battery and one for the house batteries. Some say "use" and "store" and some say "on" and "off" and they are momentary spring loaded switches and when you hit them you can usually hear a distinct "click" on the relay. See if you can find those. R.J.
Sometimes, those switches are on the dash, Bob.........any luck yet?