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Old 04-28-2013, 01:53 AM   #1
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Hi, All,



I've had an ongoing problem with the autoleveling function of the Lippert HydraulicJacks on my 2013 36FB.



My quite good AAARVPro repair guy, here in Plano Texas, has spent hours on the phone with Lippert "Technical Support", during multiple troubleshooting sessions, butwithout a resolution.



PROBLEM:

1. Autoleveling fails to level the coach.

2. "Manual" levelingcan still be usedin leveling the coach.



LIPPERT POSITION

1. Lippert Tech Support explains that their product requires EXACTLY 12.75 Volts of Current Under Load, to function properly.

2. Lippert Tech Support therefore claims that the problem is not their fault, but is the fault of my battery.



QUESTION 1: If the Lippert System requires exactly 12.75 Volts to function, then why does the Manual leveling function still work, while the Autoleveling does not work? How can one option work while the other does not work?

QUESTION 2: Since when does any RV battery deliver exacly 12.75 Volts under any conditions?

QUESTION 3: Do we, as Redwood owners, have any recourse when such a major system fails to function? Does Lippert have to resolve this problem, or can they just get away with blaming this problem on the 12.75 Volt mythology?



Obviously, if this 12.75 Volt claim was legitimate, there would be hundreds of Redwoods with the same problem as my 36FB.



Thank you!



Robt.



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Old 04-28-2013, 05:29 AM   #2
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Robt.,

Has your RV Pro checked the voltage on your battery? Or, just try a battery that has the 12.75 voltage that Lippert is asking for.

Dave from Maine
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Old 04-28-2013, 06:45 AM   #3
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I don't think the problem is with the voltage. Try raising the front jacks higher than the rear and hit "Auto Level". The front will lower to within 6 inches of the ground and then commence its auto leveling routine. If you are unsure you have enough power, plug it into shore power or your TV - just ensure your TV is out of the way.
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Old 04-28-2013, 08:30 AM   #4
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Yes, that's what I would do to diagnose.

Also verify there is actually two batteries in those boxes. Several people have reported issues with the leveling system when only one battery is present. Redwoods only come with one battery off the line. You need to have your dealer install a matched pair of deep cycle batteries on delivery.
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Old 04-28-2013, 10:49 AM   #5
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I plug mine up to AC power before I level or put the slides out, this way you have full DC power.
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Old 04-28-2013, 11:09 AM   #6
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The voltage is not going to be exactly 12.75 volts most of the time. I am in an RV park now and plugged into shorepower. The voltage is reading 12.9 volts.
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Old 04-28-2013, 11:24 AM   #7
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I've had problems leveling with low batty power, but when I plug to the F450, run the generator or shore power I always read full power on my control panel in the Redwood. The slides actually go out faster being powered by one of the three power sources above. My F450 has two batteries which also helps.
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Old 04-28-2013, 11:41 AM   #8
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There have also been reports of a poor ground affecting the battery output. All the grounding takes place on the firewall behind the battery compartment. If that's an issue or you see corrosion, you'll probably find that you need to grind that painted area on the frame & remount the ground wires.
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Old 04-28-2013, 12:57 PM   #9
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Thank you all for your excellent suggestions!

With your permission, I will reply to each, as follows:

Q1: Has your RV Pro checked the voltage on your battery? Or, just try a battery that has the 12.75 voltage that Lippert is asking for.
A1: Yes, multiple times, during the several hours of time spent on the phone with Lippert Tech Support (who are basically just reading from a spec sheet). The voltage varies during various tests, which further indicates this "12.75 Volt Spec Requirement" is nonsense. We have also replaced some electrical components.

Q2: I don't think the problem is with the voltage. Try raising the front jacks higher than the rear and hit "Auto Level". The front will lower to within 6 inches of the ground and then commence its auto leveling routine. If you are unsure you have enough power, plug it into shore power or your TV - just ensure your TV is out of the way.
A2: Yes, we have performed a wide variety of trial-and-error troubleshooting efforts such as these. Nodice.

Q3: Also verify there is actually two batteries in those boxes. Several people have reported issues with the leveling system when only one battery is present. Redwoods only come with one battery off the line. You need to have your dealer install a matched pair of deep cycle batteries on delivery.
A3: Yep, two matched, deep cycle batteries are installed and functioning.

Q4:I plug mine up to AC power before I level or put the slides out, this way you have full DC power.
A4: Do you mean you plug the hydraulic jacks directly to the AC Power? The trailer itself is plugged into 50 AMP power, but do you mean directly plugging the hyrdaulic system into AC? Thanks, I will ask the RV guy about this.
Q5: The voltage is not going to be exactly 12.75 volts most of the time. I am in an RV park now and plugged into shorepower. The voltage is reading 12.9 volts.
A5: Yes! That is one of the questions of my first post. The "exactly 12.75 volts" claim does not seem to be a valid issue, since Manual Leveling works fine.

Q6: I've had problems leveling with low batty power, but when I plug to the F450, run the generator or shore power I always read full power on my control panel in the Redwood. The slides actually go out faster being powered by one of the three power sources above. My F450 has two batteries which also helps.
A6: By F450, you mean a truck or a generator? Thanks! I will ask the RV repair guy to check this.

Q7: There have also been reports of a poor ground affecting the battery output. All the grounding takes place on the firewall behind the battery compartment. If that's an issue or you see corrosion, you'll probably find that you need to grind that painted area on the frame &remount the ground wires.
A7: I will ask the RV repair guy to check this, too.
I appreciate all your replies. Perhaps once this is resolved, this post will provide some help for others in the future.

Thank you for all your help!

Robt.



Edited by: Mr_Toad
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Old 04-29-2013, 11:28 AM   #10
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Quote:
Originally Posted by Mr_Toad
Hi, All,



I've had an ongoing problem with the autoleveling function of the Lippert HydraulicJacks on my 2013 36FB.



My quite good AAARVPro repair guy, here in Plano Texas, has spent hours on the phone with Lippert "Technical Support", during multiple troubleshooting sessions, butwithout a resolution.



PROBLEM:

1. Autoleveling fails to level the coach.

2. "Manual" levelingcan still be usedin leveling the coach.



LIPPERT POSITION

1. Lippert Tech Support explains that their product requires EXACTLY 12.75 Volts of Current Under Load, to function properly.

2. Lippert Tech Support therefore claims that the problem is not their fault, but is the fault of my battery.



QUESTION 1: If the Lippert System requires exactly 12.75 Volts to function, then why does the Manual leveling function still work, while the Autoleveling does not work? How can one option work while the other does not work?

QUESTION 2: Since when does any RV battery deliver exacly 12.75 Volts under any conditions?

QUESTION 3: Do we, as Redwood owners, have any recourse when such a major system fails to function? Does Lippert have to resolve this problem, or can they just get away with blaming this problem on the 12.75 Volt mythology?



Obviously, if this 12.75 Volt claim was legitimate, there would be hundreds of Redwoods with the same problem as my 36FB.



Thank you!



Robt.


Robert,



I am a retired electrical/electronics engineer. Battery terminal voltage varies a function of the chargestatus of the battery. A fully charged lead-acid type battery will have terminal voltage in the range of 13.2 to 13.4 volts.As energy is drawn from the battery and it discharges, the terminal voltage will decrease. I expect that the Lippert tech really means that their control system requires a minimum of 12.75 Volts for the Auto-Level control system to function properly. Like others have posted, I recommend that you have the shore power connected or tow vehicle power connected to the coachwhen you are leveling the coach. This will ensure that there is sufficient voltage available as most charging systems will put out14.5 to 14.7 volts when charging the batteries.



All of the suggestions that have been posted are good suggestions. Since you can level the system manually, have you tried re-calibrating the leveling system? If so, and it still doesn't function properly, then possibly the level sensor box (that is mounted to theceiling above the battery and hydraulic pump compartment )and/or the leveling control board is defective. Lippert should be able to walk your technician througha check of those items.



You may have to get Redwood involve in this process also to ge resolution.

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