Forum Discussion

gonzo71's avatar
gonzo71
Explorer
Jul 10, 2017

Kwikee Steps parts

Hi All,

It has been a while for me to post. My old lady finally is giving me a little problem.
My Kwikee Steps are not moving either in or out. I traced the problem to be the control unit.
I went to the dealer but they are having a hard time finding the right part.

I have a Series 25 Kwikee Step. The part number on the old control unit is 90950800, but my dealer can not find that part anywhere. I went to the Lippert website and that number comes up with nothing as well.

Does anybody know if the number changed or is the an upgrade kit I need to order?

Thanks for helping me out.
Class A
  • gonzo71's avatar
    gonzo71
    Explorer
    Oct 08, 2017
    Got it all figured out. The magnetic door switch was faulty.
  • tropical36's avatar
    tropical36
    Explorer
    Jul 18, 2017
    garry1p wrote:
    I had the same problem motor worked from the battery and then found it was the 4 way connector corroded.

    I could measure 11.5V out of the connector but corrosion would not allow enough current to pass.

    So many will make this mistake while troubleshooting, with voltage present at no load and not realizing that it disappears and goes to 0 with the load applied and sometimes due to a bad ground return.
  • garry1p's avatar
    garry1p
    Explorer
    Jul 18, 2017
    I had the same problem motor worked from the battery and then found it was the 4 way connector corroded.

    I could measure 11.5V out of the connector but corrosion would not allow enough current to pass.
  • tropical36's avatar
    tropical36
    Explorer
    Jul 11, 2017
    gonzo71 wrote:
    Artum Snowbird wrote:
    There is a lot of combined Kwikee help on here. What makes you think it is the control unit?

    In my case, the steps would not move. I put my meter onto the motor leads and saw the unmistakable pulse from the control unit, then because they were unable to move, the control unit would trip off internally to avoid an overload.

    When I released the bolts slightly that were holding the unit tight to the frame, that gave a little more clearance and presto, it worked. I put some shims under the bolts and never had another problem with it.


    I did a full trouble shooting thing unless I am missing something its the box. Also I can move the steps without a problem if I power the motor direct from a 12V battery

    Sounds like you know what you're doing and most sure you checked for power going into the controller.
    Try Amazon for this or a like control unit and where many get the drive gear and motor from.
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    Jul 11, 2017
    Not 100% on the spelling, Visone RV.. THey are in KY just north of Corbin, Do mail order and they are pehaps the nations's largest RV junkyard.

    Odds are they have it Spent a bit over a Kilobuck there on my way hone this spring.
  • gonzo71's avatar
    gonzo71
    Explorer
    Jul 10, 2017
    dr3x wrote:
    By no means am I an expert in the field but I was ready to replace mine, the controller until I stopped and took the time to follow the tests to the tee to check system as Kwikee has laid out online. Well to my surprise and relief it led me to a bad wire connection in the harness to the controller. The wire inside the harness was green and had corroded to the point of no connection. Cut off a short piece of the wire at both ends of the poor connection. Reattached and sealed connection and re wrapped and steps work great. Cost 20 cents and some time to test and trace. All I am saying is do the test as laid out on the Kwikee website and follow the results to the proper fix. Grounds and wire connections are so suspect on these motorhomes and components. Good luck happy hunting. Let us know what you find.


    I have done that those test and that how I came up with the idea its the control box. But maybe your post motivates me to get my ass under there one more time to clean the contact etc.
  • gonzo71's avatar
    gonzo71
    Explorer
    Jul 10, 2017
    Artum Snowbird wrote:
    There is a lot of combined Kwikee help on here. What makes you think it is the control unit?

    In my case, the steps would not move. I put my meter onto the motor leads and saw the unmistakable pulse from the control unit, then because they were unable to move, the control unit would trip off internally to avoid an overload.

    When I released the bolts slightly that were holding the unit tight to the frame, that gave a little more clearance and presto, it worked. I put some shims under the bolts and never had another problem with it.


    I did a full trouble shooting thing unless I am missing something its the box. Also I can move the steps without a problem if I power the motor direct from a 12V battery

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