Our site we are leaving today is not level. On arrival, I had to place a board under each front tire to get level (excess slope light out).
Prepping to leave today during quiet hours, we attempted to retract rear slide. Bladder deflated ok, but no solid light and retract would not work. I knew we were VERY close to level, so I turned the switch in the basement for HWH override.
Slide still would not retract. Also tried HWH reset on driver left arm inside the coach. No go.
After quiet hours ended, started the Cummins. With air pressure up, and hitting re-level button, excess slope went out. Slide then retracted.
I was surprised the HWH over-ride in basement did not work with excess slope to retract the slide.
If the boards had sunk into the ground and we could not achieve perfect level, the slide would not have retracted. I guess in any future similar situation I should use more than one board under tires to achieve level.
Comments?
Double-checking the manual, that override in the basement is so you can drive the coach if there's an HWH not-ready error. The override allows the transmission to go into gear. It doesn't appear to have anything to do with the slideouts.
However, the manual also states
I wonder, since the bladder deflated but the light never went solid (since 2003 uses vacuum detect not time, I believe) if there wasn't quite enough air pressure to create adequate vacuum on the bladder. Did the aux compressor run when you turned the slideout key?
I believe Michelle is right. I think for whatever reason it wasn't detecting vacuum. Which it has to have adequate air pressure.
Tom
We were at near 8000 feet altitude. The auxiliary compressor did run, and I took the cover off the pressure setting and forced the compressor to run a little longer thinking pressure might be the issue. Didn't help or I did not force it to run long enough.
The Cummins run to bring gauges up to 110 let the slide out function.
We are going to Santa Fe right now 7,000 feet altitude. If problem does not reoccur perhaps altitude/air pressure was the issue. We will be in Santa Fe 4 days.
I know the bladder was at least partially deflated, but not sure fully deflated
Michele is correct again, my 2003 has the vacuum switch attached to the output of the bladder manifold so the HWH system is waiting for verification of vacuum from that switch before allowing the slide to move.
Tyson
In the 2003 (at least), the vacuum switch is what tells the yellow light to go solid. If it's still flashing, it doesn't think the bladder has enough vacuum on it yet and won't let the slide retract.
While we were in Santa Fe I adjusted the D square air pressure switch for more basement compressor driven air pressure. It was under 75 psi before, between 80 to 85 now.
Clockwise (tighter spring) increases air pressure.
No issues leaving Santa Fe with slide bladders. Coach was level and Santa Fe about 1300 feet lower than when we had the issue, (Santa Fe 7,000 feet).
The bladders seemed to deflate a bit faster with the increased air pressure setting.
Square D in far right of photo with cover off.