E02 displayed and the Amfa4000 does not draw brine during regeneration

Safety first: Disconnect power and close the inlet valve before servicing the brine system. Have towels ready for minor water spills.

• 1. Inspect brine level: Remove the lid of the Amfa4000 brine tank. Ensure there is adequate water and salt. If the tank is completely dry, the system may not be drawing or refilling correctly.
• 2. Check brine line connections: Follow the small brine tube from the valve head down into the brine tank. Ensure push-fit or compression fittings are fully seated and not cracked. Tighten any loose nuts gently.
• 3. Clean the venturi injector: On the Amfa4000 control valve head, locate the venturi/injector housing (usually under a small cover held by screws). Remove the cover and carefully pull out the injector nozzle and throat. Soak them in warm water and gently clear any scale or debris with a soft brush or toothpick. Do not enlarge the orifices.
• 4. Check the brine well float assembly: Lift the brine well cover inside the tank and remove the safety float assembly. Rinse off salt sludge and ensure the float moves freely up and down. Reassemble correctly.
• 5. Prime the brine line: With the inlet valve open and power restored, start a manual regeneration. During brine draw stage, briefly loosen the brine line connection at the valve to purge air, then retighten once brine is flowing.

If E02 returns after cleaning and priming, the venturi housing or internal brine piston in the Amfa4000 valve head may be worn and require replacement.