E96 means the PureSpa is experiencing a system error. If the control panel displays this error, turn off the system and unplug it. Plug the unit back in and restart it. If the error persists, turn it off and unplug it. After unplugging it, unscrew the B and C connection until water starts to leak out. Do not unscrew them to the point that they come off of the tub as you can lose all the water in the tub. Loosening them until the leak will release any air from the control base. Tighten the connections and restart the unit.
If problem persists, please contact the Intex Service Center for assistance.