[Richard]

This rear slide worked fine until we sent the board back to HWH for the second time because of the new issue involving the front slide (slide #1) continuing to EXTEND when we pushed RETRACT. This is a clue. The HWH hydraulics are a bit unusual, since on the extend function BOTH the extend and retract solenoids are open. The retraction depends upon the difference in surface area of the piston in the ram. Also, there is a unusual check valve in the live end of the cylinder that will not allow the cylinder to extend UNLESS there is pressure upon it from the retract solenoid. My point is the extend and retract solenoids could be reversed which would explain this IF the board was functioning properly.

On the non retract issue, does the pump "grunt" when you push the retract button like it is applying pressure? Does the room move even a fraction of an inch? Are the slide lock pins retracting first? Or where they never extended with room out?

Thanks for confirming pump pressure and fluid level.



Good job on ID on the wires, I used colored zip ties and doubled and tripled some of them to have enough unique indicators. But we don't know WHO may have touched it in the past. I always leave this door open cause we just don't know.

Hmmm, on the floor not coming up, are the lock pins engaged or disengaged?

I couldn't find my essay to Jack, so here is my memory. And the chips are mighty corroded.

Slide out operation.
Key on.
30ish second delay to pull slide seal flat
lock pins retract
lock pin retracted signal to brain
both extend and retract solenoids open
room moves outward until limit switch in center of basement floor makes telling brain to close solenoids

This is where I am fuzzy, pin down solenoid activates, pins go down, pin down signal sent to brain

floor solenoid up is activated
floor up switch is made
Floor solenoid deactivates

I am fuzzy on the pins because HWH used different methods over the years to tell the brain where the pins and rooms where. You MAY Have magnets on the roof of the slide out and prox switches instead of mechanical triggers on room position. If those magnets are missing or have moved, it could cause problems. The most common problem with that is the pins add ventilation holes to the slide out roof.