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 > RV steps don't retract when engine is started

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Blaise

Upstate NY

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Posted: 05/27/22 01:58pm Link  |  Quote  |  Print  |  Notify Moderator

I just got my rig out of the shop for some maintenance, and on my way home (almost all the way home), I noticed that the steps were not retracted. I drove 25 miles on the highway without seeing that - that's on me.

The steps have 2 modes - (1) auto open and close whenever the screen door opens and closes; and (2) stay open ignoring the door opening or closing. But when in this mode, starting the engine causes the steps to retract. At least they USED TO work that way.

Starting the engine no longer causes them to retract when in mode 2. So mode 1 works as it always has, but mode 2 only partially works. The steps stay open no matter what.

I've had the rig 6 years, and this is the first time I've seen this behavior. I'm pretty sure they worked properly when I dropped the RV off at the shop (2 months ago!), I almost always have the steps set to mode 2, and I think I remember the steps sliding out when I arrived at the shop to drop it off. But to be honest I can't swear to that.

When I picked it up, the door was closed and the steps were out, so it was definitely in mode 2. They just didn't close when I started the engine and drove away.

Anyone ever see this type of behavior, or can hazard a guess as to what might be causing this problem?

Thanks!


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Posted: 05/27/22 02:05pm Link  |  Quote  |  Print  |  Notify Moderator

Look up the operation/maintenance manual for your step. Generally there is a wire for the engine running and wires for the door closed. Wiring, connectors, fuses, controller etc are all suspect.


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Blaise

Upstate NY

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Posted: 05/27/22 03:03pm Link  |  Quote  |  Print  |  Notify Moderator

Yup, good idea! I just started paging through the manual ...

dougrainer

Carrolton, Texas

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Posted: 05/27/22 04:08pm Link  |  Quote  |  Print  |  Notify Moderator

Under the step at the 4 wire connector is a YELLOW wire. THAT wire must have 12 volts when Ignition is ON. IF it does NOT, then that fuse is blown ands usually located at the LF fuse panel in front of the LF tire in that compartment. The Yellow HOT wire is what tells the step to retract when engine ON and the entry door closed. The entry door MUST be closed for the Ignition override to work. Doug

ae5573t

Alabama

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Posted: 05/27/22 05:35pm Link  |  Quote  |  Print  |  Notify Moderator

When my steps would not retract with the ignition key on, it turned out to be the step control module which is part of the step motor assembly.


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StarkNaked

West Seattle, WA

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Posted: 05/27/22 07:33pm Link  |  Quote  |  Print  |  Notify Moderator

Check to make sure the magnet that controls the door switch is still in place.

If the magnet is missing, the system will think the door is still open.

dougrainer

Carrolton, Texas

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Posted: 05/28/22 07:20am Link  |  Quote  |  Print  |  Notify Moderator

StarkNaked wrote:

Check to make sure the magnet that controls the door switch is still in place.

If the magnet is missing, the system will think the door is still open.


I believe he stated that the steps extended and retracted when the wall switch was on, which means the Magnet is working. IF they do NOT, then yes, his door magnet switch is the problem. Doug

Blaise

Upstate NY

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Posted: 05/28/22 07:40am Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the responses guys. Doug is right, the steps operate normally except for not retracting when in what I called "manual" mode, the door is closed and the engine is started. (or what the service manual calls "override" - when the override switch is set to ON). But thanks for the thought StarkNaked (great handle!)

Like Doug said, the service manual details a yellow wire coming from the 4 conductor connector that must get 12v when the ignition key is turned on.

I'll check the voltage on that line, and if it doesn't get the 12v with the ignition on, I'll check the fuse/breaker - on second thought, I'll check the fuse first! ;-) I'll do this as soon as the rain lets up :-)

If the fuse is good and the yellow wire is getting 12v with the ignition on, then I'll have to do like ae5573t suggests, check the control module. That'll probably cost a pretty penny to replace!

Again, thanks for the feedback guys!

dougrainer

Carrolton, Texas

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Posted: 05/28/22 09:02am Link  |  Quote  |  Print  |  Notify Moderator

In 43 years I have NEVER had a Module go bad on the Ignition override. I have worked on thousands of Kwikee steps. The previous poster that stated a bad module, from what I have seen over my 43 years, the shop replaced the module, then FOUND THE REAL problem and fixed it and sold the customer a high dollar part and did not want to reinstall the original module and admit they diagnosed it wrong. Doug

2bzy2c

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Posted: 05/28/22 09:12am Link  |  Quote  |  Print  |  Notify Moderator

Having a low voltage condition on your battery makes the steps not
operate correctly. Check your voltage at the steps.


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