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 > RV steps don't retract when engine is started

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dougrainer

Carrolton, Texas

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Posted: 05/30/22 08:40am Link  |  Quote  |  Print  |  Notify Moderator

What I do when confronted with a possible blown fuse is this. I use a standard 12 volt test light. I go to EVERY fuse block I can find on the RVl. With Ignition ON, I probe EVERY fuse. 9 times out of 10, that finds the blown fuse/s and I replace and that fixes the problem. The 10th time will be a wiring failure. After 43 years I NEVER trust the labeling on a RV fuse block schematic. I verify myself which fuses are good or bad. Also, this takes less than 15 to 20 minutes at most. Saves a LOT of time. Doug

Blaise

Upstate NY

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Posted: 05/30/22 02:11pm Link  |  Quote  |  Print  |  Notify Moderator

I think I identified the breaker for the ignition override line of the steps:

I don't see how to make the IMG tag work ... so here's a link instead:

http://www.thebaxfamily.com/Pics/RV-Step-Ign-Breaker.jpg

I've never this type of breaker trip, but I assume that when one trips, the white plastic piece pops out.

Well, tracing the cable did not work out well. The loom for the cable leading to the vehicle side of the 4-wire connector leads right away into a larger loom containing many other wires. I followed that larger loom; it snaked under the floor to the opposite (drivers) side of the RV. It then lead into one of the basement compartments. Unfortunately, that area of the basement is boxed out with metal. So, looking at it from the inside of that compartment, the loom is behind a metal plate.

This is directly under the galley area, so I'm going to dig around behind panels in the galley lower cabinets. Maybe I can find that loom and continue my search for the source of this mysteriously missing 12 volts.

But now it's time to cook a Memorial Day steak! Enjoy the rest of the Holiday!

Thanks again all.


2016 Winnebago Vista LX 30T
Toad: 2015 Chevy Sonic hatchback

dougrainer

Carrolton, Texas

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Posted: 05/31/22 06:09am Link  |  Quote  |  Print  |  Notify Moderator

Yes, the white button pops out. Have you removed that panel to verify that the 2 wires on that breaker are connected? Doug

Blaise

Upstate NY

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Posted: 05/31/22 06:45pm Link  |  Quote  |  Print  |  Notify Moderator

You read my mind Doug - rather, I read yours! I pulled that panel. Both wires were connected to the breaker, but there was not 12 volts on either side of the breaker (with the ignition on), so that means the problem is upstream of the breaker.

I figured the most logical thing would be an upstream fuse/breaker, even though it seemed kind of silly to have 2 breaks on one line.

Started looking at the fuses under the hood, but they were all heavy duty. I figured the fuse I was looking for would likely be 5 or 10 amps, not the 30+ amp fuses/breakers I saw under the hood.

Then I remembered that there is a fuse panel in the coach - in a VERY inconvenient location - at the floor, to the left of the steering wheel! I had to lie down on my side, chest facing the brake pedal, butt up on the transmission hump between the driver and passenger seats - oh my back!

There are 27 mini fuses on that panel. And Doug, you're totally right - I looked up the fuse panel layout in the Ford F53 chassis owners manual, hoping I could determine which fuse to check. But the figure in the manual didn't look ANYTHING like the panel in the vehicle! I checked them all - the bad one was the 26th that I checked, of course - 10 amp.

Anyway, I replaced that fuse and all is well.

Thanks to all for the help and advice - it's very much appreciated.

dougrainer

Carrolton, Texas

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Posted: 06/01/22 06:49am Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the final posting. Your tale points to what I did state, the ONLY good way to determine electrical problems relating to fuses is to test EACH fuse, regardless of what any schematic seems to tell you. Doug

way2roll

Wilmington NC

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Posted: 06/01/22 06:53am Link  |  Quote  |  Print  |  Notify Moderator

Thanks for coming back and telling how you fixed it . Had the same issue on a previous MH. I replaced all those fuses with ones that light up when blown. Saved me a ton of hunting in the future.


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