2011 Fleetwood Storm no 12V power w.o AC

Your storm has a box called BCC battery control center, if you google bcc troubleshooting you can get a diagram for it.

Thanks, everyone, for the suggestions. At the end of the day, there was a breaker deep down inside the box where the relays are for the house batteries that had popped. There's still an issue with the isolator but at least now I have 12 going to and from the house batteries. I'll figure the rest out (or pay someone to...) after I get back from my trip.

Thanks again!

Check your battery disconnect relay - the intelitec relay has a couple of fuses on the relay.

In a pinch, a standard car battery charger will do.

jgbo wrote:
Thanks, Mark. A few additional details: running the engine will charge the house batteries as you mentioned. However, running the engine does not feed the 12 v lights and other items. They are only working when 110 is fed so my lights are working now bit, as you suggest, the house batteries are not getting charged from the 110.

I noticed that now, even when the disconnect is turned off, the light that suggests it's on is still lit. Additionally, in the past when I turned off the disconnect the steps would not activate - now they do.

Re fuse, it was a 10a fuse but of course that fuse is not labelled so I have no idea what it was. I can state with confidence I didn't blow the fuse messing with any wires. That said, if I lost a ground somewhere it wouldn't surprise me though I think it's more likely a solenoid or some such went. Unfortunately, they don't give us any wiring diagrams with these things so I'm guessing I'll have to bring it in for service. Sigh.

Running the engine charges the H-battery only. It has no connection to the 12v,dc, circuit so it will not power 12v items as you noted. So the house-batteries must be connected to the 12v,dc,circuit to have any of those items working when not plugged in (not happening). That includes operation of the air-conditioner (thermostat needs 12v,dc). The LED light should light when plugged into shore-power. It only means the 12v,dc, circuit is energized. To show the batteries are connected the LED must light when the disconnect switch is pushed to connect the battery-bank when not plugged into shore-power. No lit LED means the solenoid (solid state type for our Fleetwoods) did not connect when the rocker-switch was pushed to "on". Solenoids can sometimes stick so cycle the switch on and off a number of times. If the battery is low starting the MH engine will supply more voltage to the house-batteries and may help make the solenoid work.

Until the solenoid gets checked out and most likely replaced you can get 12v,dc, if you are plugged into 120v, ac, shore-power but obviously the batteries are neither being charged nor discharged since they are out of the circuit. I take it you must have used a portable charger to recharge the house-batteries right before this post. You should do that again to get them back to 12.7 volts. It may take 12 to 24 hours.

Thanks, Mark. A few additional details: running the engine will charge the house batteries as you mentioned. However, running the engine does not feed the 12 v lights and other items. They are only working when 110 is fed so my lights are working now bit, as you suggest, the house batteries are not getting charged from the 110.

I noticed that now, even when the disconnect is turned off, the light that suggests it's on is still lit. Additionally, in the past when I turned off the disconnect the steps would not activate - now they do.

Re fuse, it was a 10a fuse but of course that fuse is not labelled so I have no idea what it was. I can state with confidence I didn't blow the fuse messing with any wires. That said, if I lost a ground somewhere it wouldn't surprise me though I think it's more likely a solenoid or some such went. Unfortunately, they don't give us any wiring diagrams with these things so I'm guessing I'll have to bring it in for service. Sigh.

jgbo wrote:
Any help appreciated. I recently let the house battery get too low on voltage. In the process, 1 fuse blew. I've since recharged the house battery and it's currently sitting at 12.2V. The only 12V gear that seems to work, though, are the entry steps; fridge, water pump, interior lights all are off UNLESS I plug in to 110AC.

I measured the output of the converter and it's putting out 13.7V, remeasuring battery still shows 12.2 so something isn't connecting somewhere. I've rechecked all fuses - both near the house batteries and at the main AC breaker. All breakers were OK but I also opened and reclosed them.

Given my luck, I was planning to bring the rig out today - I can leave the generator running all day but I'm really hoping there's another button or fuse somewhere that's not obvious that will fix my problem. Any suggestions?

Thanks!!

Running the generator will be useless since it powers the converter/charger through the 120v,ac, circuit. Running the MH engine would allow the alternator to charge the batteries. You should see 14.4+ volts at the House-battery terminals.

The problem is either the switch from shore-power use to self-contained, or your solenoid is not allowing the house-batteries to get connected.

Some thinks to note:

Plugging in will allow the 12v circuit to work but not charge the batteries if solenoid failing (yours working this way currently per your description).

Alternator bypasses the solenoid so charging should be seen.

Since you saw no increase from H-bat. reading of 12.2 volts (60% charge) and the converter/charger output 13.7 volts at test, it again shows the H-bat. are not connected.

You need to check all connections at the house-batteries, including the ground (battery connection and frame). Also check connections on converter too. The converter/charger has one or two fuses to be checked.

A low battery does not blow a fuse. What wires were you messing with?
What fuse blew? Shorts, loose connections, or someone poking around the wires causes a fuse to blow.

The entry steps are working because they are on the chassis battery. I'd try running the engine and see if you get house charge voltage off the alternator. If you still get only 12.2V at the battery posts, you may have toasted the battery.

Thanks, Westend. There is a disconnect switch and when I use it I can hear the relay actuate. There are also 3 relays in the 12v area and I tested all three - I put then in a circuit I new was working and heard all three actuate. I guess they could still be damaged internally - the coil working but the contact failing. I'll see if I can get some new relays today at orielly and give it a shot.

Pretty desperate :). Will be running the generator all day today in a parking lot as we're off at a sporting event...

Thanks again for the quick reply!

Do you have a battery disconnect switch in the Storm? If so, there is a relay that may have gone South and is not connecting the battery with the 12V system. The steps may be wired directly to the battery and that's why they function when nothing else works.