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Old 02-13-2018, 07:18 PM   #1
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2004 national Dolphin Bedroom slide Electrical

I am having with my 2004 National Dolphin.
Last trip out it sheard a pin on the bedroom slide drive gear while extended out.
I was able to put a small bolt thru the gear in place of the sheared rollpin and close slide with no issue's
I got home and am attempting to put the correct roll pin in the gear.
Now the slide is closed and will not open.
Ive checked all breakers and all fuses that I know of ,and all is good.
I can hear the relay clicking when open or closed switch is made, but cant tell for sure which one it is.
Seems the clicking is coming from behind the outer board on the 12 volt control circuit board in the compartment behind front right tire and under the passenger seating area.
My Main slide works fine in and out.
Bedroom only clicks the relay either way

Any suggestions would be appreciated
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Old 02-13-2018, 09:42 PM   #2
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I had similar problems when I had my 05 Dolphin. I had the roll pin break several times on brass gear, & the noticed teeth also had broken on the brass gear and the bushing at the end of the worm gear also broken and fell out in pieces. I replace these, but used a steel gear instead of brass, but it broke teeth off after very few uses. To me, it appeared that the motor/gear assembly has so much torque that if you hold the slide button too long once the slide is in, or out, something can break, usually the roll pin, but sometimes other things , like the brass gear.
After having replace these parts including the original type brass gear, I installed limit micro switches, wired them in series with the bedroom slide in/out wall switch and adjusted them to stop the slide motor just when the slide touched full in and out stops. I never had any problem again with the slide. So maybe look closely at gear assembly for damaged gear or 1/4" used instead or roll pin being jammed......
Also, the slide control board may be in the front passenger basement compartment and will look similar to circuit board below(08 Dolphin). Two relays are for the front slide , two for the rear. I did have an intermittent rear slide not working once. One relay was bad, still clicked, but had bad contacts. Relays are a common type and do plug in or out of this board and have to be replaced if bad.



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Old Yesterday, 08:13 PM   #3
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I too have had problems with the shear pin breaking. It happens about once a year even though my wife and I are very careful moving the slide as it approaches the ends of travel.

The last time I drove my motothome I had traveled about 10 miles and someone drove up alongside of me on the freeway honking the horn and pointing to the right. When I looked out my rightside mirror I couldn't see anything but white. I thought a bin door had opened up and blocked my view through the mirror. Imagine my surprise when I pulled over and walked around the rig to the passenger side and saw that my bedroom slide had slid out on it's own. The key was not even in the electrical interlock switch. The problem was that the shear pin must have broken after the last time the slide was closed, the gears slipped on the shaft while I was on the freeway and let the slide swing out.

I will put limit switches on my bedroom slide for this reason. I'm glad to see the pictures of the mounting brackets; looks like a nice clean installation.

Mike
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Old Yesterday, 08:47 PM   #4
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I found the hardest part of adding position switches was running the wire from the slide assembly to the hallway control panel. But I liked how it worked when it was finished.
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