Slide out room creeping in

[RandyN]

I am new to this site and have already found some great info dealing with problems. I have a question concerning my living room slide on my 2002 CC Intrigue. The room slide is an HWH system. The room creeps in a few inches over a period of time. This time is usually over a 24 hr period but sometimes it can be in as little as 8 hrs. I found a hose that was leaking and had an RV shop replace the hose. I currently have the coach at a Tech and he is telling me that HWH recommends testing the system to see if the solenoid is leaking or if the hydraulic piston is leaking.
My question is, has anyone ever tried a product call Trans Tune by Sea Foam. The product is designed to remove contaminants from the hydro fluid. It will not harm seals. Just curious if this product is something I should try. Thank You in advance for any recommendations. Randy

[RV Wizard]

Hello Randy and welcome to iRV2.com. We are glad to have you join us here and I am sure you will enjoy the website. We look forward to reading of your adventures and experiences.
I suspect you have air in the system and this will need to be purged. Ask your tech to carefully inspect the hydraulic lines for any deterioration and replace any lines that are suspect. He should at least purge the system but you may want to go ahead and drain the system and install new ATF Dextron III or equivalent fluid and then purge the system of air. Once this is done, the system can be tested for any other problems. You could have a bad solenoid or piston.

[RandyN]

Thank you for your response. I will have him check for air since he just replaced the line. Maybe he did not get all the air out. I hope that is the problem and not a cylinder. If it is a cylinder, they would need to dismantle part of my living room to get to the cylinder according the guy at HWH. Thanks again. Randy

[TXiceman]

Often you can work the air out by cycling the rooms, one at a time through a few in/out cycles. be sure and monitor the hydraulic fluid reservoir for proper level. If you let the level get too low, you will suck in more air.

Ken

[AFChap]

In my experience there are normally two causes for a creeping slide (barring hydraulic leaks):
- You have a habit of opening or closing a slide partway and stopping. HWH recommends you do not open/close part way. If that has happened. Close the slide all the way, holding the switch down 2-3 seconds after it stops moving. Then open the slide all the way, holding the switch down 2-3 seconds after it stops moving. The close it all the way, again holding the switch down 2-3 seconds after it stops moving. That will help purge the system.
- One of the solenoids is leaking, and needs to be replaced.

[RandyN]

Thank you for the response. It sounds like it might be an air issue that can be corrected by proper use of the slide out. I will try getting all the air out prior to using the product, Sea Foam, Trans Tune. The Trans Tune will do nothing for the air but it will help get rid of any contamination in the system. The guy at Sea Foam told me that it will help dissolve any particle and also get rid of the varnish that may have developed over time. Thanks again for all the help. Randy