De'Longhi Rivelia EXAM440.55
- Category
- Coffee and espresso machines
- Model number
- EXAM440.55, EXAM440.55.B, EXAM440.55.W
- Region
- United States, UK and international
- Manual
- 57132C8962 revision 03
- Verified
- Rating label
- Rating plate on the bottom of the machine (Rivelia EXAM440.55). Source: Instructions for use, Coffee maker EXAM44X5Y, 120 V edition (English, French, Spanish), p. 6At the base of the machine, on the rating plate. Source: support page
- Time to fill the water tank with fresh water and then insert it.
- Can you empty the drip tray and the grounds container? Fill water tank with fresh water and then insert it.
- Can you insert the brewing unit?
- Time to empty the grounds container and the drip tray.
- Empty the grounds container and drip tray. Once done, if you still see this message, ensure the side door is closed.
- Are you sure you have added the pre-ground coffee? Add it now One scoop only!
- Oops! it looks like you're out of coffee beans. Time to add some more.
- The new settings have not been saved
- Just doing a little cleaning. I'll be back in a few seconds
- I am unable to complete your drink. Please reduce the pre-ground coffee quantity and try again
- I am unable to complete your drink. Please reduce the pre-ground quantity, empty the grounds container and try again
- Sorry, I am unable to complete your drink. Increase the grind setting by 1 (+1).
- Sorry, I am unable to complete your drink. Please reduce the intensity and try again
- Remember to store the milk carafe in the fridge
- It's time to descale the machine. Ready? (~30 min)
- Oops, the process has been interrupted
- It's time to replace the water filter. Ready?
- Something's not right: can you refer to the user manual please?
- The water circuit is out of water. Ready to refill?
- Prepare at least 3 coffees before changing again !
- I got too hot. Wait a few minutes, when I've cooled down you can brew milk drinks again
- Filter spent indicator
- Descale warning indicator
- Milk carafe Clean indicator
- Energy saving indicator
- Coffee is not hot
- Milk has large bubbles, splashes from the spout, or has too little froth
- Water tank is hard to remove
- Bean hopper is hard to fit
- How to descale the Rivelia
- How to install or replace the water filter
- How to set the water hardness
- How to clean the brewing unit
- How to clean the milk carafe after use
- How to clean the milk carafe thoroughly
Nothing on this page matches. Search all models
Error codes
| Code | Meaning | Checks |
|---|---|---|
| Time to fill the water tank with fresh water and then insert it. | The tank is low or not seated correctly. | Checks |
| 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. | Checks |
| Can you insert the brewing unit? | The brewing unit was not refitted after cleaning. | Checks |
| 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. | 2 causes |
| 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. | 2 causes |
| 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. | Checks |
| Oops! it looks like you're out of coffee beans. Time to add some more. | The coffee beans have run out. | Checks |
| 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. | Checks |
| 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. | Checks |
| 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. | 2 causes |
| 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. | Checks |
| 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. | Checks |
| Sorry, I am unable to complete your drink. Please reduce the intensity and try again | Too much coffee was used. | Checks |
| Remember to store the milk carafe in the fridge | A milk drink was made and the carafe is still on the machine. | Checks |
| 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. | Checks |
| Oops, the process has been interrupted | Descaling was interrupted or not completed correctly. | Checks |
| 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. | Checks |
| Something's not right: can you refer to the user manual please? | The inside of the machine is very dirty. | Checks |
| The water circuit is out of water. Ready to refill? | The water circuit is empty, or a new water softener filter was just fitted. | 2 causes |
| Prepare at least 3 coffees before changing again ! | Bean Adapt needs 3 drinks brewed before another adjustment. | Checks |
| 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. | Checks |
| Filter spent indicator | Reminder that the water softener filter must be replaced. | Checks |
| Descale warning indicator | Reminder that the machine must be descaled. | Checks |
| Milk carafe Clean indicator | Reminder that the milk carafe needs cleaning. | Checks |
| Energy saving indicator | Energy saving is on. | Checks |
De'Longhi codes on other models
Time to fill the water tank with fresh water and then insert it.
Time to fill the water tank with fresh water and then insert it. The tank is low or not seated correctly.
Not enough water in the tank. Source: Frequent and alarm messages, p. 52
- Take the tank out, fill it with fresh drinking water to MAX and refit it.
Tank not correctly in place. Source: Frequent and alarm messages, p. 52
- Fit the tank correctly.
Can you empty the drip tray and the grounds container? Fill water tank with fresh water and then insert it.
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.
- Fill the tank, and empty the drip tray and grounds container, so several drinks can follow without interruption.
Can you insert the brewing unit?
Can you insert the brewing unit? The brewing unit was not refitted after cleaning.
- Refit the brewing unit. See Clean the brewing unit.
Are you sure you have added the pre-ground coffee? Add it now One scoop only!
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.
- Check the funnel is not blocked, add one level scoop of pre-ground coffee and press Ok.
Oops! it looks like you're out of coffee beans. Time to add some more.
Oops! it looks like you’re out of coffee beans. Time to add some more. The coffee beans have run out.
- Fill the bean hopper and press Done.
The new settings have not been saved
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.
- Press OK to return to the homepage, read the alarm that stopped it and follow the matching message instructions.
Just doing a little cleaning. I'll be back in a few seconds
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.
- Wait until the machine is ready, then select the drink again.
I am unable to complete your drink. Please reduce the pre-ground quantity, empty the grounds container and try again
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.
- Use no more than 1 scoop of pre-ground coffee.
- Empty and clean the grounds container.
Sorry, I am unable to complete your drink. Increase the grind setting by 1 (+1).
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.
- Press Ok, then Next, and follow the grinder tutorial: turn the grind ring one step coarser (+1) while beans are being ground.
- Make at least 3 coffees before adjusting again.
Sorry, I am unable to complete your drink. Please reduce the intensity and try again
Sorry, I am unable to complete your drink. Please reduce the intensity and try again. Too much coffee was used.
- Select a milder intensity in the drink's customization bar, then press Ok.
Remember to store the milk carafe in the fridge
Remember to store the milk carafe in the fridge. A milk drink was made and the carafe is still on the machine.
- Remove the carafe and put it in the refrigerator.
It's time to descale the machine. Ready? (~30 min)
It’s time to descale the machine. Ready? (~30 min) (some versions add: Scan the QR code if you don’t have the descaler.). 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.
- Descale the machine. See Descale the Rivelia.
Oops, the process has been interrupted
Oops, the process has been interrupted. Descaling was interrupted or not completed correctly.
- Press Ok to resume descaling from where it stopped. See Descale the Rivelia.
It's time to replace the water filter. Ready?
It’s time to replace the water filter. Ready? (some versions add: Scan the QR code if you don’t have a replacement.). The water softener filter is spent. If you postpone, the filter symbol stays lit on the homepage.
- Replace or remove the filter. See Install or replace the water filter.
Something's not right: can you refer to the user manual please?
Something’s not right: can you refer to the user manual please? The inside of the machine is very dirty.
- Clean the machine thoroughly: grounds container, drip tray, inside of the machine and brewing unit. See Clean the brewing unit.
Prepare at least 3 coffees before changing again !
Prepare at least 3 coffees before changing again ! Bean Adapt needs 3 drinks brewed before another adjustment.
- Make at least 3 coffees, then adjust.
I got too hot. Wait a few minutes, when I've cooled down you can brew milk drinks again
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.
- Wait until milk drinks are available again on the homepage.
Filter spent indicator
Filter symbol lit on the homepage. Reminder that the water softener filter must be replaced.
- Replace or remove the filter. See Install or replace the water filter.
Descale warning indicator
Descale symbol lit on the homepage. Reminder that the machine must be descaled.
- Descale without delay. See Descale the Rivelia.
Milk carafe Clean indicator
Milk carafe symbol lit on the homepage. Reminder that the milk carafe needs cleaning.
- Clean the carafe with the Clean dial. See Clean the milk carafe after use.
Energy saving indicator
Energy saving symbol on the homepage. Energy saving is on.
- To switch it off, open General in the settings menu.
Problems
- Coffee is not hot3 causes in the manual. First: 2–3 minutes since the last drink, so the internal circuit has cooled.
- Milk has large bubbles, splashes from the spout, or has too little froth2 causes in the manual. First: milk not cold enough or unsuitable.
- Water tank is hard to removeThe tank needs tilting to release.
- Bean hopper is hard to fitLoose beans or coffee residue in the hopper socket.
Water tank is hard to remove
The tank needs tilting to release. Source: FAQ, p. 59
- Tilt the tank away from the machine; once released it comes out easily.
Bean hopper is hard to fit
Loose beans or coffee residue in the hopper socket. Source: FAQ, p. 60
- Brush the socket clean.
- Insert the hopper with the unlock symbol aligned to the notch, then twist clockwise to the lock position.
Steam comes out of the top after making coffee
Vapour from the used coffee dose escapes through the grounds container. This is normal. Source: FAQ, p. 59
How-to
- How to descale the RiveliaWhen the machine shows "It’s time to descale the machine" or the descale symbol is lit. Takes about 30 minutes. Start from the message with Yes, or from Descale in the settings menu.
- How to install or replace the water filterWhen "It’s time to replace the water filter" appears or the filter symbol is lit, every 2 months, or after 3 weeks unused with a filter fitted.
- How to set the water hardnessAt first use and whenever your water supply changes. A correct setting means descaling is requested less often.
- How to clean the brewing unitAt least once a month, and when "Can you insert the brewing unit?" appears.
- How to clean the milk carafe after useAfter each milk drink, when the machine prompts for the Clean function. For several drinks in a row, press Cancel at the prompt and clean after the last one.
- How to clean the milk carafe thoroughlyAfter 1 day for the LatteCrema Cool carafe and after 2 days for the LatteCrema Hot carafe; the machine reminds you.
Maintenance
| Task | When | Source |
|---|---|---|
| Run the carafe Clean function | After milk drinks | Source: Cleaning the milk carafe after use, p. 31 |
| Thoroughly clean the milk carafe | After 1 day (LatteCrema Cool) or 2 days (LatteCrema Hot) | Source: Cleaning the machine: Thorough cleaning of milk carafe, p. 45 |
| Empty the grounds container | When the machine asks, at the latest after 72 hours, and whenever the drip tray is removed | Source: Cleaning the machine: Coffee grounds container, p. 41 |
| Empty and wash the drip tray | Before the red float indicator rises above the cup tray | Source: Cleaning the machine: Drip tray and drip tray grille, p. 42 |
| Clean the brewing unit | At least once a month | Source: Cleaning the machine: Removable brewing unit, p. 44 |
| Vacuum coffee residue from inside the machine (behind the drip tray), machine off and unplugged | About once a month | Source: Cleaning the machine: Inside of the machine, pp. 42–43 |
| Wash the water tank in warm water | About once a month, at each filter change, and after more than 3 days unused | Source: Cleaning the machine: Water tank, p. 43 |
| Wash the removable pre-ground coffee funnel | About once a month | Source: Cleaning the machine: Pre-ground coffee funnel, p. 43 |
| Replace the water softener filter | Every 2 months, or after 3 weeks unused | Source: Water softener filter, p. 51 |
| Descale | When the descale message appears | Source: Descaling, p. 47 |
| Run 2–3 rinses | Before use after 3–4 days unused | Source: Menu settings: Rinsing, p. 16 |
Settings
| Setting | Options | Default | Notes | Source |
|---|---|---|---|---|
| Grind setting ring | Numbered ring on the bean hopper socket | 5 at first use | Turn it only while beans are being ground. Make at least 3 coffees before adjusting again. The settings menu has a grinder tutorial, and Bean Adapt suggests a setting for the beans in use. | Source: Using the machine for the first time: Fit the bean hopper, p. 11 |
| Water hardness | Levels 1 to 4 | Set at first use from the test strip | Sets how often descaling is requested. | Source: Menu settings: Water hardness, pp. 19–20 |
| Coffee temperature | Selectable levels including Medium and Max | Has most effect on long drinks. | Source: Menu settings: Coffee temperature, p. 18 | |
| Auto-off | Several intervals | Factory-set to a low value | Source: Menu settings: Auto-off, p. 17 | |
| Audible warning and Energy saving | On or off | Source: Menu settings: General, p. 16 | ||
| Default values (factory reset) | Whole machine or one profile | Restores factory settings and removes customizations; language and statistics are kept. A full machine reset restarts first-use setup from Profiles. | Source: Menu settings: Default values, pp. 20–21 | |
| Empty circuit | Guided procedure | Drains the water circuit before long storage, frost risk or a trip to a service centre. Afterwards the machine must be set up again as for first use. | Source: Menu settings: Empty the water circuit, p. 20 |
Parts and consumables
| Item | Part number | Replace or refill | Specification | Source |
|---|---|---|---|---|
| De'Longhi descaler | – | When the descale message appears | 100 ml (one single-use pack) per descaling, topped up with 1 litre of water. De'Longhi says to use only its own descaler. | Source: Descaling, p. 48 |
| De'Longhi water softener filter | EAN 8004399327252 | About 2 months, or 3 weeks if unused | Fits a housing inside the water tank. The manual gives this EAN for the filter. | Source: Water softener filter, p. 50 |
Specifications
Bean-to-cup machine with two interchangeable bean hoppers (Bean Switch System), a touch screen, Bean Adapt Technology, a LatteCrema milk carafe with a Clean dial and a pre-ground coffee funnel. Source: Description of the machine; Description of accessories, pp. 5–9
Alarms appear as full-sentence messages on the display, such as "Time to fill the water tank with fresh water and then insert it." Postponed descaling, filter replacement and carafe cleaning stay on the homepage as indicator symbols. Source: Frequent and alarm messages, pp. 52–58
The rating plate with the voltage is on the bottom of the machine. The machine's serial number is shown under General in the settings menu. Source: 2.4 Connecting the appliance; 8.4 General, pp. 6–10
The North American edition is rated 120 V, 60 Hz, 1450 W. Source: Cover, p. 1
| Electrical (North America) | 120 V, 60 Hz, 1450 W | Source: Cover, p. 1 |
|---|---|---|
| Electrical (international) | 220–240 V, 50–60 Hz, max. 10 A, 1450 W | Source: Technical data, p. 64 |
| Pump pressure | 1.9 MPa (19 bar) | Source: Technical data, p. 64 |
| Water tank | 1.4 L | Source: Technical data, p. 64 |
| Bean hopper | 250 g each | Source: Technical data, p. 64 |
| Size (W × D × H) | 250 × 430 × 390 mm | Source: Technical data, p. 64 |
| Weight | 9.7 kg | Source: Technical data, p. 64 |
Recalls
No exact-model match for EXAM440.55 in the U.S. Consumer Product Safety Commission recall database, checked . Recalls can name model families, so also check current recalls for De'Longhi.
Service 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
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.
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