The Delonghi Magnifica S descaling light stays on, how to fix

If the DeLonghi Magnifica S descaling light stays on, it likely means the descaling and rinsing cycles were not completed correctly. Try restarting the machine, or repeat the descaling cycle using only water and ensure you fill the water tank to the max level for the final rinses. If the issue persists, a faulty water flow sensor or a need for professional service may be the cause. 

Step 1: Reset the machine 

• Turn the machine off and then on again. This can sometimes reset the light. 

Step 2: Repeat the descaling and rinsing process

• If the light remains on, run the descaling process again, but this time use only water.
• Make sure to fill the water tank to the “max” line for the final two rinse cycles to ensure the warning light is properly cleared.
• Follow the descaling instructions exactly, as a skipped step can cause the light to remain on. 

Step 3: Check for other issues

• Check the water tank: Ensure the water tank is properly seated and has sufficient water, as this is crucial for the rinse cycles to complete.
• Consider a factory reset: If the problem continues, you can try a factory reset, but be aware this may not solve the issue if a hardware problem like a clogged water flow meter is the cause.
• Contact support: If the light still won’t turn off after these steps, contact DeLonghi technical services for assistance, as there may be an internal issue with the machine’s sensors.