Need help with hydraulic slides

[tnau]

I have the electric over hydraulic system for slides. The pump is made by Dewald. The last few times we've used our class c the motor on the rear slide would keep running after releasing the switch. Usually you could bump the switch back out to stop it. Today, when sliding in the pump kept running. When I bumped it the unit moved out and then back in: THEN NOTHING!

Now, I have no movement on either the front or rear slide when I try the switches inside. As I tried to troubleshoot I hooked power to the pump and it begins running. I believe this is normal since it is the suggested action if you are stuck with a slide out.

Is there a breaker that tripped when the pump kept running? Is there a relay that needs to be replaced to stop the pump running after we release the switch? I looked through all my information and searched here but have not found anything. Please help as we need to leave Friday morning for a money trip!

Thanks for your help
Terry

[tnau]

I replaced the relay that connects the switches to the pump. No change. Anyone have an idea if there is a breaker for the slide power? Getting dark on me now and I work tomorrow. I will check voltage to the relay Monday afternoon but would not know where to go if there is none.

[Midniteoyl]

Cant help ya on where that fuse/breaker is, but it is the most likely culprit. Once you find and change it, replace the slide switch to fix the original problem.

[tnau]

Thanks for the reply Jim. My electrician did find the bad breaker today and was able to jump it. He moved the slide in and out from the motor area but could never even get power to the switches inside. Hopefully he'll have better luck tomorrow.

Terry

[URascal]

I'm having similar problems with my slides on a fifth wheel. The breaker keeps kicking. They are 30 amp resettable breakers. I don't know why the breaker keeps tripping, could be the electric motor on the pump is defective. I can also jump my breaker and make the slide work. I never jump the breaker from battery side to motor side, I jump from the coach side of an adjacent breaker to the slide breaker. Would be interested to know what your mechanic finds out.