Can't get slide to work...had a noise of air loss and replaced the solenoid...air noise stopped and the light on the panel inside flashes and will not go into operation mode??? What have I missed?? Thanks
If you're level, is your aux compressor running when you turn the slide key? It needs to be running to pull vacuum on the slide bladder.
If it's running and the light never stops flashing, the vacuum hasn't been achieved. This could be due to a slide bladder leak. That's especially suspect since you mentioned the sound of air leaking.
Do you know when that slide bladder was last replaced? They have about a 7-10 year lifespan.