De'Longhi EXAM440.55 “The water circuit is out of water. Ready to refill?”
The water circuit is empty, or a new water softener filter was just fitted.
Cause 1 of 2Water circuit empty. Source: Frequent and alarm messages, p. 57
First checkPress Yes to fill the circuit; the flow stops by itself.
Causes and checks
Water circuit empty. Source: Frequent and alarm messages, p. 57
- Press Yes to fill the circuit; the flow stops by itself.
- If it continues, check that the water tank is correctly in place.
A new water softener filter has been fitted. Source: Frequent and alarm messages, p. 57
- Check the filter was installed as instructed.
- If it continues, remove the filter. See Install or replace the water filter.
All 2 causes checked. Contact De'Longhi Customer Services.
Service
If the checks above do not clear it, contact De'Longhi Customer Services, delonghi.com/en-us/s/EXAM440.55.B. Numbers and service centres per country are listed on delonghi.com. Source: 3.2 Troubleshooting and repairs, p. 7
Other EXAM440.55 codes
- Time to fill the water tank with fresh water and then insert it.: The tank is low or not seated correctly.
- Can you empty the drip tray and the grounds container? Fill water tank with fresh water and then insert it.: The tank does not hold enough water for the drink and the grounds container will soon need emptying, so the machine asks for both at once.
- Can you insert the brewing unit?: The brewing unit was not refitted after cleaning.
- Time to empty the grounds container and the drip tray.: The grounds container is full, or 72 hours have passed since the first coffee. No coffee can be made until it is emptied.
- Empty the grounds container and drip tray. Once done, if you still see this message, ensure the side door is closed.: The grounds container or drip tray is missing or not seated, or the side flap is open.
- Are you sure you have added the pre-ground coffee? Add it now One scoop only!: A pre-ground coffee drink was selected without enough pre-ground coffee in the funnel.
- Oops! it looks like you're out of coffee beans. Time to add some more.: The coffee beans have run out.
- The new settings have not been saved: While a drink was being customized with the My function, it was stopped with X or an alarm went off.
- Just doing a little cleaning. I'll be back in a few seconds: The machine found impurities in its internal circuits and is clearing them; it will not make coffee meanwhile.
- I am unable to complete your drink. Please reduce the pre-ground coffee quantity and try again: Too much pre-ground coffee was used, or an air bubble from the water filter is blocking delivery.
- I am unable to complete your drink. Please reduce the pre-ground quantity, empty the grounds container and try again: Too much pre-ground coffee was used.
- Sorry, I am unable to complete your drink. Increase the grind setting by 1 (+1).: The grind is too fine, so coffee comes out too slowly or not at all.
- Sorry, I am unable to complete your drink. Please reduce the intensity and try again: Too much coffee was used.
- Remember to store the milk carafe in the fridge: A milk drink was made and the carafe is still on the machine.
- It's time to descale the machine. Ready? (~30 min): The machine needs descaling. Press Yes to start, or Cancel to postpone; the descale symbol then stays lit on the homepage and the message returns at each switch-on.
- Oops, the process has been interrupted: Descaling was interrupted or not completed correctly.
- It's time to replace the water filter. Ready?: The water softener filter is spent. If you postpone, the filter symbol stays lit on the homepage.
- Something's not right: can you refer to the user manual please?: The inside of the machine is very dirty.
- Prepare at least 3 coffees before changing again !: Bean Adapt needs 3 drinks brewed before another adjustment.
- I got too hot. Wait a few minutes, when I've cooled down you can brew milk drinks again: Several milk drinks in a row; the machine must return to the right temperature.
- Filter spent indicator: Reminder that the water softener filter must be replaced.
- Descale warning indicator: Reminder that the machine must be descaled.
- Milk carafe Clean indicator: Reminder that the milk carafe needs cleaning.
- Energy saving indicator: Energy saving is on.
Sources
- Instructions for use, Rivelia EXAM44X.5Y (English). De'Longhi Appliances S.r.l. Document 57132C8962, revision 03, 2026-05, 65 pages, en. library.delonghigroup.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.
- Instructions for use, Coffee maker EXAM44X5Y, 120 V edition (English, French, Spanish). De'Longhi Appliances S.r.l. Document 57132C9620, revision 02 (file A1-57132C9620_02_0426), 2026-04, 86 pages, en-US. library.delonghigroup.com. Retrieved 13 November 2026.
Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.