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Old 12-06-2015, 10:21 PM   #1
Join Date: Nov 2011
Posts: 37
SLIDE Sometimes no power WHY?

2004 Tiffin Alegro gas engine LOW milage.

Emergency Brake on. Ignition to ACC. House and Veh Battery full charge. LEVEL NOT IMPORTANT.

Neither front nor rear slide will open... assume no power.

At rear slide switch. EXPOSE. Run 12V positive wire from house battery. Touch pole #2 to exposed 4 plug/contact switch. Press open and it works. Front slide now also works. Can also send 12V positive to under bed slide motor... everything works.

Once energized will continue to work... until the next stop. Sometimes will work even then.

When something works sometimes and does not work sometimes not an easy concept to resolve.

Fiddling with ignition switch many time not a resolution. Parking brake on or off many times not a solution as simply giving mementary power to switch should not resolve with it working with momentary removed. Should not work at all if that was the issue.

Must be a simple answer.... like it was a cludy day...

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Old 12-07-2015, 03:42 AM   #2
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Sounds like you have badly pitted points in the solenoid. If you have control voltage when switch(s) is activated and the solenoid energizes but no connection is made then bad points.

Mike, RVIA & RVSA Certified Master RV Technician
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Old 12-07-2015, 06:15 AM   #3
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Give Tiffin Service a call. They can tell you which solenoid and where it is located. BTW, have you tried putting the slides out with the engine running? Your batteries, unless you are plugged into 50 amps, may just be too low to move anything.
Roger & Mary
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Old 12-07-2015, 09:36 AM   #4
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My allegro bus slides will not work with the key on. Have you tried doing it with the key in the off position
2005 Allegro Bus 38DP
2012 Enclave tow vehicle
No Dogs, No cats.
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Old 12-07-2015, 10:27 AM   #5
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I'm not familiar with your slide system so my comments are general. Do you have 12 VDC to the switch? If not is that why you ran a jumper from the battery to it? If you have 12 VDC at the switch but you had to jumper across the switch (to the output side), then there's a good possibility that the switch itself is going bad. Those little rocker switches do arc and burn especially with DC voltage on them. If that happens, they can become notoriously intermittent, working fine so several actuations, and not working at all for many more.
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power, slide

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