RVA Levelers won't go down Safari Trek

[BikerGirl]

I've been trying to trace why the levelers won't go down. 1st, since we rode with a beep, beep beep forever! I assumed that the fluid was low. added some, but still it won't go down


checked some fuses in the outside fuse compartment under driver seat. now I'm under the front seat looking at fuses etc there. when I turn on the switch power, and push "all retract", I can hear the click in the control box.



does that then go through the relay under there?



what steps should I follow to diagnose?


thanks for any and all help

[Isaac-1]

I don't know about the 2004 Trek, but the older 95-02 Trek had a common issue where the negative ground for the pump was poorly connected to the frame and would tend to go bad. 2004-2008 model years were a major redesign after the Monaco buyout of Safari in 2001 This topic is discussed in a number of threads on the trek tracks forum, but since it is a closed members only forum I can't provide a direct link.

[BikerGirl]

looking for a neg on pump. cannot locate; maybe it fell off on the rough roads in upstate NY. thought my brain was rattled! LOL


if you have a pic, that would be great! thx

[jacwjames]

My pump is located up front passenger side.



If you added oil that is where the pump is, it consist of the reservoir, motor, and valve block. At the top of the valve block there are solenoids with a "Tee" handle at the top, make sure all the Tee handle are closed shut. These are used for emergency retract, if they are open the jacks won't go down.



You might check but I have some in line fuses at the pump besides one in the fuse panel in my front drivers side electrical bay.


Make sure the park brake is on, ignition is on.



Does your panel light up when you try and use? Can you hear the pump run?

[BikerGirl]

thanks Jim,


cannot locate any in line fuses near the pump. valves are in closed position. dash switch/remote lights up. pump does not turn on whether for down or up on jacks. still can't locate a ground on the pump unless the brown wire at 9 o'clock is it, but there is nothing going from the pump to the chassis for ground. maybe I can attach a wire from pump to the frame and test?

[jacwjames]

Here is a link to the RVA technical documents. There is a typical wiring for monaco document
https://www.rvajack.com/RVA-Technical-Documents

[vito.a]

Have your jacks ever worked while you've owned the coach?
First, the pump only runs while extending the jacks. They are retracted by opening the hydraulic solenoid and then the springs pull them up.
To extend press and hold the switch for the front one first then the two rear.
Ours also had an inline blade fuse going to the pump.

[RoadTrip2084]

Originally Posted by jacwjames

At the top of the valve block there are solenoids with a "Tee" handle at the top, make sure all the Tee handle are closed shut. These are used for emergency retract, if they are open the jacks won't go down.

I think there is some confusion here, I believe the OP is having problems getting the jacks to retract, not "go down" per se. I believe they are already "down", and won't, in fact, retract.

In which case opening the tee handles should release the pressure on each jack and allow them to retract manually. Be very careful about where you are physically located when you do this, as the coach will drop very quickly and could crush you if you are underneath it.

[BikerGirl]

have been to the tech docs site. a bit confusing. there doesn't seem to be any in line fuse near the pump. yes, have used them a couple months ago.



I hear the clicking through the controller box under dash on left, but there is no pump movement.



tomorrow, I will crawl under and trace wires from pump area.

thinking that pump is not getting power

[153stars]

If not mentioned I believe there is a starter type solenoid relay on pump unit for high draw of motor. It's pulled in with control power from the push buttons/control panel .
There are a 3-5 solenoid relays on DP and many posts of failures an one of these.

[BikerGirl]

to clarify, the jacks are currently up. had a problem recently to lower, just had a small block under 1 tire to handle that. upon return to home, I wanted to determine the problem, so that is the reason for the posting.


I've been troubleshooting. have referred to the tech docs on the RVA docs; found a step by step testing scenario.


I have found that I do have power coming out of the controller box to the relay (brown wire). it appears that the relay (under dash; typical 5 blade) is not putting power out . have a relay on order and should have it sometime tomorrow. plan to go from there


I suspect the pump is fine, just getting power out from relay to the pump itself hopefully is the only issue


will report back after installing new relay

[BikerGirl]

switched the relay with a new one; still not working


thinking the parking brake that is supposed to send msg to relay that it is on is not working properly


anyone have any other ideas?

[Drivertodd1]

Make sure your house batteries are charged and good. My 2000 2430 jacks would not work. I was told they were bad and need to be replaced. I found the manual and it said if batteries are below 10v dc, the pump motor would not work. Replaced the old batteries and the jacks worked like new.

[BikerGirl]

yup, batts good, just checked and had them checked 2 months ago for life; >95%. they are only about 1.5 yrs old.


found a loose connector on the park brake that sends to relay and indicator on dash. fixed. will try again tomorrow