There are reasons the battery could be low; I'd try plugging in to shore power, which through the converter will bring the available DC to 12, actually 13.8 v, pretty much instantly.  Check the slide then.  If it still doesn't work, check for a blown fuse.

If the battery is low, try to figure out why.  You may not have charged it while driving to your storage space, depending on your TV wiring.  Check the battery itself.  Could be your dealer put an old battery on your Pod.

There are phantom draws on the battery.  The propane detector, the control board for the fridge (the fridge will kill the battery really quickly if you leave it on 12v), the television antenna booster, maybe another thing or two.  It's generally a good idea to leave the Pod plugged in during storage, if possible, or disconnect the battery.  Leaving it plugged in is, in my opinion, the best option.  The onboard converte/charger does a great job of maintaining the battery.

If, and this isn't all that likely, your battery is dead, you probably need to talk to your dealer, but you may want to replace it with two x 6v golfcart batteries if you think you'll be doing a lot of bondocking.

TT

Jack,

By stating you are receiving an error message on your refer I am led to believe your battery is quite low on power.  By taking a reading with a volt meter you will find this out.  Also, plug your 179 into your house using the heavy duty cord supplied or if that isn't long enough we all have extension cords laying around, use that and see if that will take care of the problem, it should.  Just don't try using any power hungry items while using a cheap extension like your A/C, furnace or microwave.  If battery is low use a good trickle charger (2 amps or so) to bring it back up slowly to full charge.

Yep, low battery.

FYI, the slide-out runs on 12V, regardless of whether you're plugged into shore power or not. 

I’m thinking the battery’s dead.  As indicated above, there’s a good chance the dealer installed an old battery, since nothing was left on the past couple of days.  Also, no problem with TV wiring.

Because we live in a subdivision, we store around the corner from our home. The storage location does not have shore power, but I can get power to it.  Assuming I can get the slide out to operate, I’ll check the battery level and replace if needed.  If that’s needed, I suspect the dealership, as mentioned above, may have installed an old battery. Thereafter, I will pull the battery and keep it charged at home so that it’s ready to go when we are.

Thanks again for all your help!

I don't know if I gave anyone the impression that I thought the slide works on shore power.  It's pure 12v.  But, if a battery is low or even dead, plugging into shore power will almost certainly and instantly put 12v into and out of the battery (through the converter/charger), allowing the slide to function.

TT

If you always had shore power at your campsites, never used the trailer during the day while on the road,  and never used your fridge on 12V the only reason  (a good one) to have a battery in an rPod is to operate the emergency breakaway braking system. All your other 12V stuff will run from the charger directly.

To run the breakaway system a little motorcycle start battery or the equivalent would be more than sufficient. Or you could just get a breakaway kit with an integrated battery. 

+1

There are troubleshooting steps available to check whether the converter is operating. First thing to check though is the two 40A fuses in the middle of the power panel. Those blow to protect the converter if the battery is connected with reverse polarity.

http://wfcoelectronics.com/wp-content/uploads/2015/11/New-Flow-Chart-for-WF-8900-Series.pdf - WFCO troubleshooting Chart.