E9 appears and the water dispenser (if fitted) does not operate or runs continuously.

Safety: Turn off mains power and close the water supply valve to the refrigerator before working on the water system.

Steps:

• 1. Check water supply: Confirm the external water tap is open and the supply hose is not kinked.
• 2. Replace or bypass the water filter: A clogged CDA inline water filter can cause low flow and trigger errors. Replace the filter according to the schedule or temporarily bypass it for testing.
• 3. Test the dispenser switch: At the dispenser, press the lever and listen for a click from the microswitch. If no click, the switch may be faulty or misaligned.
• 4. Access the water inlet valve: At the rear lower section, locate the dual or triple water inlet valve. Inspect for leaks, cracked bodies, or loose connectors.
• 5. Electrical test: With power disconnected, measure coil resistance on the valve. An open circuit indicates a failed coil. Replace the CDA water inlet valve if defective.
• 6. Flow sensor (if fitted): Some CDA models use a flow meter in the water line. If E9 persists after valve and filter checks, the flow sensor or PCB input may be faulty and should be checked by a technician.

Warning: After any water system work, carefully check for leaks when power and water are restored.