I have not used my RV in a while a brought it home to clean it up and go out this Friday. My problem is my jacks will not go down. I do have my parking brake on. It on clicks, but nothing goes down. The lights come on in the jack panel indicating it's not level and that it's turned on.Two things I should mention. I noticed mouse droppings inside motorhome, I don't guess there is a chance they chewed wires? Next, last time I took it out, I purchased new coach batteries and the gut at interstate battery did not know what he was doing and could not figure out how to hook it back up in series (2 batteries). I think I used my jacks, but I'm not positive.Any suggestions

Is the parking brake warning light coming on when the brake is set? If the parking brake switch is dirty (corroded) then the warning light won't illuminate, and that is the circuit that tells the jacks that its OK to function. Spraying some contact cleaner on the switch (behind the park brake pedal, below the dash) will usually work.

On mine, the light only comes on to tell you that you don't have the parking brake on. I tested that to see if it would come on if I did not have it on and it does. I have tried doing the brake on and off several times, changing gears, nothing works. I pulled the wiring harness out and it looks ok.I've tried the breakers, that did not work. Don't think fuses in my panel have anything to do with it.Looked at battery, don't see any non connected wires.

First: What brand and model jacks?Second: Are your batteries fully charged?Third: Do any lights on the control panel turn on when you turn the jack panel on?

On mine, the panel will lite, but not work if the ignition key is off, Looks like everything is getting power but will not work with the key off.. just another idea. That and I had to reset the parking brake a few times..

Jacks will not go down | Good Sam Community

RedG
Explorer
Jun 07, 2013
Check to see if you have power to the master relay - the big red cable coming from the battery to the relay. If not, it's probably related to your battery hookup as you suspect. The control board gets 12v from the ignition switch as well which will light up your control board lights, but not let your pump work or the solenoids.
If the cable to your master relay is hot, check all grounds, especially the mounting bolts on the bottom of the jack system that mount it to the frame. Also, check that the nut on the ground post where all the white wires connect is tight.
Here's a troubleshooting guide if your jacks are 625 series:
http://www.hwh.com/ml35963.pdf
Jones1
Explorer
Jun 07, 2013
I had a problem with the HWH jacks on my Dutch Star DP and the problem was a blown fuse located at the pump. This fuse is enclosed in a rubber wp holder and I believe it is a 40 amp fuse.
mxdad290
Explorer
Jun 07, 2013
Batteries are good and I am currently plugged into power. There is a chance they are not wired correctly to battery though. I had new coach batteries put in 6 months ago and Interstate Batteries. They have done it in past and no problem. This time a new guy did and 3/4 of my stuff would not work.

Four hours later there, I got it all back working. I am almost positive that I checked that, and would be big thing I would have checked. Just can't remember for sure.
mxdad290
Explorer
Jun 07, 2013
HWH hydraulic Leveling
1995brave
Nomad
Jun 06, 2013
mxdad290 wrote:
Tried finding the fluid level, not sure where to look. No owners manual. Thought was underneath , could not find.

What jacks do you have???
koda55
Explorer
Jun 06, 2013
We had problems with our Big Foot Jacks not going down and had trouble raising them. I put 2 new house batteries in and they work fine now.
mxdad290
Explorer
Jun 06, 2013
Tried finding the fluid level, not sure where to look. No owners manual. Thought was underneath , could not find.
garry1p
Explorer
Jun 06, 2013
I think there is a small fuse in the box under the joysticks could be blown.
There may also be an auto resettable breaker on your firewall that has failed.

On mine when it starts giving me a hard time I may have to reset the emergency brake several times then it works OK.

Let us know what you find once fixed.
det62
Explorer
Jun 06, 2013
Have you checked your fluid level?
doxiemom11
Explorer II
Jun 06, 2013
We had a neighbor who had jacks not going down, it was a loose wire under the dash.

Forum Discussion

Jacks will not go down

About Motorhome Group

Related Content

Leveling Scissor Jacks

Jack

Jacking For Tire Change

Camper Jack

Car Jacking