Slide problems April 07, 2021, 10:39:16 pm My coach is in my shop with the slides out. I couldn’t get either one to go back in. My 12V compressor will only build about 50 pounds and runs all time. (The previous owner put a gauge on line 75.) There is a ball valve on line 76 (Schematic B-2254) so I’m not losing air there. I don’t hear any air escaping in the bay other than when I have the Venturi operating with the slide key on. I wondered if the “air tank” switch valve is bypassing but I don’t see it on the schematic and I don’t know which line it is on. I figured it was on line 76 going to the wet tank. I finally got the rear slide in earlier but the front one does nothing. The light blinks and the seal goes into a vacuum but the light keeps blinking and doesn’t go solid. I can use as paper clip to trick the front vacuum sensor and the light quits blinking and goes solid but the pump still won’t run. The rocker switch must be working because I hear a faint click when I press the retract button.I’ve tried all the tricks I know to get this slide in but to no avail.Last year when I was at MOT getting serviced I told them I had intermittent problems with the front slide but all they did was turn up the air pressure switch a little and told me it wasn’t building enough pressure. I continued to have intermittent problems but it would usually work after trying it a couple of times.The coach is level. I don’t know where to look next. I haven’t raised the coach and crawled underneath yet. I feel a little like an idiot at this point after so many years with these coaches and being stumped by this.