Slides stopped working??

[Gutz54]

We have had our 2018 3811 sitting on some property for about 6 months---3-4 weeks ago hooked her up and went and emptied the tanks after closing the sideouts with no problem--today tried to put them in again and neither the front or the back slideouts will move?? Fuses look OK,air is working?? We are stumped??We are also a very electrically challenged couple!!

[DQDick]

The first thing would be to check your battery or batteries. If the rig wasn't plugged in there are a number of things, like the propane detector, that will drain your battery and eventually kill it.

[Daryles]

Check your battery voltage using the hydraulic control panel menu. It will tell you your battery voltage.
Plug your truck (running) into it and try again

[Rondo]

Like the other two previous posts on your problem, I would vote for bad or dead battery/batteries. Even with the battery cut-off switch turned to the off position and key removed there is still trickle drains taking power from your battery. Even is it has been plugged into shore power you can still drain and burn up a battery by causing it to go dry. First of all I'd check your battery or batteries and see if they have died. If good, then I would check the reset fuse on the wall behind the battery compartment and see if it is good. I'd also check to make sure your ground to the frame is also tight and making a good connection.

[1retired06]

Agree with all, and I installed a blade disconnect directly on the negative battery post (we have just one) which provides for 100% shutdown.

[Gutz54]

WE have the RV plugged into a dedicated 50 amp service 24/7

[Gutz54]

I thought the slides would be powered directly by being hooked up to the 50amp service?? Do the slides actually work off the charged batteries that are charged thru the inverter when you are hooked up to shore power?? The air and everything seems to be working--lights,AC fridge????

[Daryles]

If they are hydraulic slides, and your voltage is good it could be the 50A self resetting breaker went bad.
Do the jacks work?
I.E. does the hydraulic pump work.

[Carl n Susan]

Originally Posted by Gutz54

I thought the slides would be powered directly by being hooked up to the 50amp service?? Do the slides actually work off the charged batteries that are charged thru the inverter when you are hooked up to shore power?? The air and everything seems to be working--lights,AC fridge????

The hydraulic pump that drives the slides and jacks (if you have the 6 point Level Up) run off of 12V from the *BATTERIES*. The converter (not inverter) charges the batteries. It does not produce enough current to run the pump by itself.

Cheeck the batteries to ensure they are charged and voltage is flowing to the pump.

[Gutz54]

I'll need to check--haven't checked the jacks--where is the 50A resetting breaker located??

[Daryles]

Take a multimeter. On shore power, check each post of your 50A self resetting circuit breakers near your batteries. They should all read the same (about 12.4vdc).
Now remove shore power. Check them again.
Which ever one is NOT showing 12vdc on the post, it is bad. Replace it.

In fact if you have not already done so, put the hydraulic pump on its own 80A circuit breaker per Lippert bulletin. You can download a copy from the files section of this website

[Carl n Susan]

Here is a Thread with everything you need to know about those 50 amp self resetting circuit breakers.
https://www.montanaowners.com/forums...ad.php?t=78438

[bcrvman]

Originally Posted by Gutz54

I thought the slides would be powered directly by being hooked up to the 50amp service?? Do the slides actually work off the charged batteries that are charged thru the inverter when you are hooked up to shore power?? The air and everything seems to be working--lights,AC fridge????

The hydraulics need a LOT of power/current/amps to work. That is only available from a well charged battery. There is a self resetting fuse that Keystone has recommended you upgrade to an 80Amp from the existing 50Amp.
If you have the factory converter (NOT an inverter, that converts DC to AC for your residential fridge) and the factory batteries OR ANY battery that has the initials CA or CCA you likely need a new battery and it is best if it is a Golf Cart battery. Trojan T105 is the usual, you need 2 6V batteries. You also need some way of knowing the SOC (State Of Charge) if it falls below 50% the batteries will not last long (a few months). For storage, remove the batteries and have them placed on a battery tender of good quality.

[Bob and Jeannette]

Fuse upgrade or batteries most likely cause IMHO. Need a lot of amps to power the pump, more than the AC converter can supply so check the batteries and top off the water for sure. Upgrade the fuse on general principles.

[Tom N OH]

Originally Posted by Daryles

Take a multimeter. On shore power, check each post of your 50A self resetting circuit breakers near your batteries. They should all read the same (about 12.4vdc).
Now remove shore power. Check them again.
Which ever one is NOT showing 12vdc on the post, it is bad. Replace it.

In fact if you have not already done so, put the hydraulic pump on its own 80A circuit breaker per Lippert bulletin. You can download a copy from the files section of this website

FYI: you need to run a wire directly to the 80 amp breaker. The 50 in line before the 80 will still open first.

[Gutz54]

I noticed today that the inverter has no power to it?? The little light is off and nothing happens when I push the reset button---does that indicate the batteries are no good??

[Tom N OH]

Batteries could be dead, but something else would have to cause the batteries to die. Have to fix that before you think about replacing the batteries, or else it will happen again. Get yourself a multimeter & then check back so we can help you diagnose. Even a cheap meter from Wally World will do for your purposes here.

[Gutz54]

Remember we are electrically challenged---get a meter and what do i do??--check the batteries?? Be specific about what I should do--keep in mind I've never used a meter--thanks. There were two fuses on the wires coming from the battery box--both were good . Does the inverter get it's power form the batteries--is that why it appears to be off??

[Tom N OH]

Get the meter, then check battery voltage with shore power cord plugged in & then not plugged in. Check back with those results & we’ll go from there.

[Daryles]

Keystone video explaining electrical system
https://www.keystonerv.com/upper-nav...rical-systems/

Basic uses of a multimeter for RVers

https://m.youtube.com/watch?v=Jrw4QY...ature=youtu.be

You can also read the battery voltage on the level up hydraulic jack menu.