How to prevent the auto-generator start (AGS) from turning off when manually starting the generator

For Tiffin owners (or anyone with a Magnum inverter), having the auto-generator start (AGS) enabled is a good idea, even if you are normally connected to shore power. It’s useful so if there is an extended power cut at the RV park, the generator will turn on before the battery level gets too low. (I have mine set to come on for 2 hours when the battery drops to 12.2V, which is about 50%, since I have AGM batteries.)

If you boondock at any time, or use your generator while driving for AC in hot months, or even just the monthly exercise you should be giving it, you may find an annoyance with the system: if you manually start the generator, it will automatically disable the AGS feature.

But fear not, there is a solution:

Press the AGS button on the Magnum control panel.

Turn the dial until you get to the AGS TECH item, and press the dial to select that.

Turn the dial until you get to the AGS Mode item, and press to select.

Turn the dial to change from RV to Other, and press to select.

Now the AGS will remain on, even after starting the generator manually. Much more convenient.

Here’s what the AGS TECH menu item looks like:

And with AGS Mode: Other selected:

I hope this helps!