Clean and reseat the water tank ID: ec685-water-tank Version: 2.0.0 Model: Dedica EC685 / EC685 EX:4 · International manual Region: English International manual 57132C8997_01_0626; regional nameplate must match Parts: Three buttons, steam dial, removable frother and tabbed perforated filter as pictured in this manual Not covered: EC680; Dedica Arte EC885; Maestro EC950; Modified steam wand; Different filter design; Regional instructions that differ from this manual MATCH YOUR VERSION Manual and region: EC685 / EX:4: English International 57132C8997_01_0626 matches my appliance The US support-domain link serves an English International manual. It does not establish US electrical compatibility. Controls and removable parts: Original three buttons, steam dial, removable frother and tabbed filter insert Compare the removable parts and control illustrations before following a cleaning sequence. PREPARE [ ] Confirm the nameplate and your regional manual before connecting the appliance. The English International download on a US support page does not establish US electrical compatibility. [ ] For handling or external cleaning: stop delivery, switch off, unplug and wait until the appliance and removable parts are cool. Follow the separate powered steps only after reassembly. [ ] Tool: Soft damp cloth [ ] Tool: Container with a 100 ml mark if a softener is fitted [ ] Material: A little mild washing-up liquid [ ] Material: Fresh clean water STOP Stop for a damaged cord, burning smell, liquid leaking from the appliance body, all lights flashing while the machine does not work, or a holder that remains hot or pressurized. Disconnect when safe and contact De’Longhi Customer Services. Keep the casing, boiler and internal steam circuit closed. CONSUMABLE FIT Fresh clean water: Fill the tank no higher than MAX. Fit: EC685 / EC685 EX:4 matching this manual. Do not substitute: Do not operate with an empty tank or with the tank removed. Source: dedica-manual, p6 §2 Mild washing-up liquid: Use a little on a damp cloth, then rinse the detached tank thoroughly. Fit: Water tank cleaning in §11.5. Do not substitute: Descaler substitution, abrasives or detergent inside the appliance body. Source: dedica-manual, p10 §11.5 CHECK ROUTE safety: Is the appliance undamaged, with delivery stopped and parts cool and unplugged for any hands-on work? Yes -> manual-match: Keep hands clear of outlets during the specific powered water or steam steps below. No -> service: Stop for a damaged cord, burning smell, liquid leaking from the appliance body, all lights flashing while the machine does not work, or a holder that remains hot or pressurized. Disconnect when safe and contact De’Longhi Customer Services. Keep the casing, boiler and internal steam circuit closed. Not sure -> prepared: Save a preparation record and compare the matching manual before continuing. manual-match: Does your EC685 or EC685 EX:4 match English International manual 57132C8997_01_0626, including the three buttons, original frother and tabbed filter? Yes -> check-1: Continue only with the controls and parts pictured in this manual. No -> prepared: Find the manual supplied for your region and component version. This guide cannot confirm a different version. Not sure -> prepared: Save a preparation record and compare the matching manual before continuing. check-1: Is the tank intact and removable by its handle without forcing a damaged valve? Yes -> check-2: Clean the detached tank with the appliance cool and unplugged. No -> service: A cracked tank or damaged valve requires the matching part or Customer Services. Not sure -> prepared: Save a preparation record and compare the matching manual before continuing. check-2: Can you identify whether the optional water-softener filter C7 is fitted? Yes -> steps: Record its presence; it changes the final flushing step. No -> prepared: Compare the tank and C7 with the manual before removing an unidentified part. Not sure -> prepared: Save a preparation record and compare the matching manual before continuing. CARE STEPS (only when the route reaches steps) [ ] 1. Record and remove the optional filter Lift out the tank with the cool appliance unplugged. Record whether C7 is present, then remove it if fitted. Look for: You know whether the conditional 100 ml delivery is required after cleaning. Source: dedica-manual, p6 §1.3; p10 §11.5 [ ] 2. Clean the tank gently Use a damp cloth and a little mild washing-up liquid on the detached tank. Rinse the tank thoroughly so no cleaning residue remains. Look for: The tank is visibly clean and thoroughly rinsed before it returns to the appliance. Source: dedica-manual, p10 §11.5 step1; §11 cleaning cautions [ ] 3. Rinse and return the existing filter If C7 was present, rinse it under running water and put it back. This is care of an existing matched filter; a new cartridge follows its own supplied fitting instructions. Look for: The previously fitted filter is back in place, or no filter was fitted. Source: dedica-manual, p10 §11.5 steps2–3 [ ] 4. Fill and reseat Fill with fresh clean water no higher than MAX. Return the tank and press down lightly to open its bottom valves. Look for: Water is available and the tank sits normally without force. Source: dedica-manual, p6 §2; p10 §11.5 step3 [ ] 5. Deliver 100 ml when a filter is fitted For a tank with C7, reassemble and power on. Place a measuring container under the hot-water dispenser, wait for the coffee-ready lights, open the steam dial to the steam/hot-water symbol and collect 100 ml. Close the dial to ○. Keep hot-water delivery within the manual’s 60-second limit. If no filter is fitted, record that this extra delivery does not apply. Look for: 100 ml has been collected for the filtered tank; absent flow or an inability to complete it calls for stopping and checking the water supply. Source: dedica-manual, p10 §11.5 step4; p8 §8 [ ] 6. Save the cleaning date Record the date. Plan tank cleaning about monthly and whenever the optional softener is replaced. Inspect the normal seating for any leak before returning to drinks. Look for: The date and filter-dependent flushing result are both saved. Source: dedica-manual, p10 §11.5 OBSERVATIONS Softener before cleaning (required): ____________________ Choices: C7 fitted / No softener fitted Post-cleaning water delivery (required): ____________________ Choices: 100 ml delivered with C7 fitted / Not required: no softener fitted Tank cleaning date (required): ____________________ RESULT CHECKS [ ] Tank, any existing filter and fresh water are restored without detergent residue. [ ] The required 100 ml delivery is recorded, or absence of the optional filter is recorded. NEXT CARE About monthly or when the water-softener filter is replaced. Clean the tank regularly, about once a month, and whenever the optional filter is replaced. Basis: manufacturer Source: dedica-manual, p10 §11.5 Record preparation, maintenance readiness, problem located or service needed. This is not proof of a physical repair. SOURCES De’Longhi EC685 / EC685 EX:4 instructions (57132C8997_01_0626) https://library.delonghigroup.com/assetbank-delonghi/action/directLinkImage?assetId=296204&download=true p10 §11.5; p6 §2; p8 §8 Checked: 2026-10-13 Manufacturer copyright. Original workflow based on manual facts; PDF not redistributed. Dedica Style EC685.TB EX:4 support center https://www.delonghi.com/en-us/s/EC685.TB%20EX%3A4 EC685.TB EX:4 → English (International) → Instructions for use, 57132C8997_01_0626 Checked: 2026-10-13 Linked only.