I had the solenoid go out. I thought it was the valves so I cleaned them and replaced the o-rings. But the solenoid for the control vavle went out. I did an ohms test an it was open. I switched it with the deflate solenoid and I could inflate but not deflate. I purchased a solenoid pressure valve
From eBay and used just the solenoid. I wired it in and it's good as new now.