E8 displayed, unit stuck in brine draw and does not advance

Safety: Bypass the softener and relieve pressure before opening the valve body.

• 1. Inspect drain line: Ensure the drain line is not kinked, frozen, or blocked. A blocked drain prevents proper brine draw.
• 2. Clean venturi/ejector: Remove the venturi/ejector assembly from the RainSoft control valve (usually under a cap with screws). Disassemble and clean all parts, including the nozzle and throat, in vinegar. Remove iron sludge and scale.
• 3. Check injector screen: Clean or replace the small screen that protects the injector from debris.
• 4. Inspect brine line and fittings: Check for loose connections that could allow air to enter, preventing vacuum. Tighten hose clamps and replace cracked tubing.
• 5. Test brine draw: With the unit in brine draw, place the brine line into a bucket of water. If water is not drawn steadily, the injector or drain path is still restricted.

Resolution: After cleaning and reassembly, clear the E8 code by cycling power and initiating a manual regeneration to confirm proper operation.