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Old 03-20-2015, 09:25 PM   #15
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1. Storage manager said he's had it plugged in, per our request. We even checked with him about a week after our last trip, just to confirm that he was leaving it plugged in. Is it possible he wasn't telling the truth? Yes, it's possible.

2. Prior to plugging it in, we could not get the inverter's charge button to turn green for "on." LEW, remember in Albuquerque, you had to reset that for us as well. We can not figure out how the heck to get it to turn green again.

3. The inverter was definitely in "off" this whole time (inverter was NOT on)

Saturday (tomorrow) afternoon, we will go out to storage and see if there's any more clues. Will see how much charge the house batteries are showing. Will report back.
Remember that you have to 'wake up' the remote panel of the inverter, as it goes to sleep after about a minute. Hitting any button does this. Then hit the 'charge' button and press it firmly. The charge light should be solid green.

If this won't happen, you might need a re-set of the inverter. To do this, locate the area where the small grey button and green LED are located. Press the grey button and HOLD until the green LED flashes rapidly this might take a while). Wait 15 seconds and then release. See if you get to charge mode then with the charge LED solid.

If it IS solid, it should show what charging phase you are in and how much charge is going into the batteries.
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Old 03-20-2015, 09:41 PM   #16
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Lew, yes, I know you have to wake up the unit first. But when we hit the charge button, it would not light up green. When we go there on Saturday, I'll try again and I'll press it very firmly. If still no green, we'll reset per your instructions above.

Will report back what we discover later on Saturday afternoon.

Thanks....
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Old 03-20-2015, 09:56 PM   #17
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Question...I still don't understand....when we have rv stored, assuming it's either plugged in or is getting sun for solar panels, will the chassis battery also be getting charged? Does it matter whether or not we have activated the battery disconnect switch by the sliding door?
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Old 03-21-2015, 09:46 AM   #18
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HELP!! House and chassis batteries draining!

As Lew noted above the chassis batter should be kept charged by the BIM (Batter Isolation Manager). The battery disconnect switch does not effect BIM functions.


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Old 03-21-2015, 09:55 AM   #19
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As Lew noted above the chassis batter should be kept charged by the BIM (Batter Isolation Manager). The battery disconnect switch does not effect BIM functions.
I believe that the BIM is also a (small) parasitic draw that can't be turned off. In order to monitor voltage on both the house side and chassis side, and connect or disconnect them as necessary without human intervention, it must draw power in order to meter the two systems, and it must have a solenoid switch that is closed when powered and open when not powered (so in the event of power loss the default is the house and chassis sides are disconnected).

I believe that the BIM draws the power to operate itself from the house batteries, not from the chassis side, but I could be wrong about that.
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Old 03-21-2015, 01:33 PM   #20
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It took me a while to find out - and a call to Magnum support - that the Magnum Remote Control needs to be in "Home" mode before the On/Off button will turn on the inverter and green light come on. And when you plug in shore power, it takes it OUT of "Home" mode! So press the Home (middle) button for 2 seconds to get it into Home mode. Then the inverter will turn on.
Try it and let me know.
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Old 03-21-2015, 05:33 PM   #21
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Peter, they have the ME-RC remote which is more flexible and sat easier to use than the ME-MMR remote that Airstream gives you, which is a basic remote.

The ME-RC has a dedicated button for the inverter activation and charger stand by function. There is no 'home' mode on the ME -RC.

You just have to be sure it's 'awake' to operate it which simply requires pressing any button to activate the back light and LEDs.


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Old 03-21-2015, 05:56 PM   #22
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Lew, when we build our new house this year, we're gonna build a little guest room for you. You can come stay with us and help us with our AI, since we are clearly too dumb to manage on our own. Either that, or we're gonna get you a job at our local dealer so that you're just here all the time so that you can help all of us Southern Californians whose brains are fried from too much sun to figure out how to work such complicated equipment.
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Old 03-21-2015, 10:15 PM   #23
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This winter my neighbor's coach batteries were draining. Someone suggested that I check that the ground cable was tightly bolted between the body and battery. When I put the rear bed up heat was pouring from the motor. I asked if he had run the motor earlier that day. He answered no. The short story is that the circuit breaker for the block heater had some how been turned on. For whatever it's worth, if your coach is a diesel, you might want to make certain that your block heater hasn't accidently been left on.
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Old 03-21-2015, 10:34 PM   #24
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Just back from checking out the coach. Found a wire that had a screw hole in it. Was texting back and forth with Lew. Finally gave up.

Chassis battery completely dead. Key won't even turn in the ignition switch. Only other lights on in the coach were the microwave readout and the inverter readout screen.

Will have to get towed or something on Tuesday. ugh.
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Old 03-21-2015, 10:47 PM   #25
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Chassis battery completely dead. Key won't even turn in the ignition switch.

Will have to get towed or something on Tuesday. ugh.
Bring another vehicle around and jump-start it. Once you've got the jumper cables hooked up, let it sit for about a minute and the key will work in the ignition. Once you get it started, drive someplace to get the battery replaced. Just make sure you don't shut off the engine until you're where you want to be.
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Old 03-22-2015, 09:24 AM   #26
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Bring another vehicle around and jump-start it. Once you've got the jumper cables hooked up, let it sit for about a minute and the key will work in the ignition. Once you get it started, drive someplace to get the battery replaced. Just make sure you don't shut off the engine until you're where you want to be.
So that's normal, that the key won't even turn? I've never had that happen in a car or motorcycle. Usually the key will turn but the engine just won't turn over. Aaaa...expensive German machinery!

We are concerned that the battery is so dead that it won't jump start. But yes, if it will, we'll drive it right over to the battery shop.
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Old 03-22-2015, 09:43 AM   #27
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Just back from checking out the coach. Found a wire that had a screw hole in it. Was texting back and forth with Lew. Finally gave up.

Chassis battery completely dead. Key won't even turn in the ignition switch. Only other lights on in the coach were the microwave readout and the inverter readout screen.

Will have to get towed or something on Tuesday. ugh.
Bummer. I would try jump starting and then take it on a drive around San Diego following with the jump vehicle and jumper cables. It may charge up just fine. Then, drive to wherever you were going to have it towed and in a safe place to rejump if need be, and turn her off. See if she starts.

It will be much easier to keep an eye on once you have her at home.
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Old 03-22-2015, 10:14 AM   #28
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We are concerned that the battery is so dead that it won't jump start. But yes, if it will, we'll drive it right over to the battery shop.
Fun facts to know and tell, you can jump-start a car that doesn't even have a battery in it, because once it starts, the alternator supplies the power. It's not necessarily good for the voltage regulator to run the engine with the battery removed, but it can be done.

So there's no such thing as a battery that's too dead to jump-start. You're not jump-starting the battery, you're jump-starting the engine.
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