To ensure the health and longevity of your machine, it is equipped with an automatic descaling program. By default, the machine will prompt for descaling after 200 brewing cycles (indicated by a slow flashing green light on three buttons). The machine will change from a constant green light to a slow flashing green light, but you can still continue to brew coffee.
Descaling Steps:
①Preparation:Fill the water tank with water and add diluted citric acid (1:10 ratio) or a dedicated coffee machine cleaner. Place an empty cup (at least 300ml) under the coffee outlet.
②Start Program:Insert any empty adapter into the machine and briefly press the Medium Cup + Large Cup buttons to start the descaling program. The descaling process consists of three stages. The boiler will maintain a temperature of 45°C. If the machine is cold, the boiler will heat up to 45°C. If the machine has just brewed coffee, the boiler will stop heating until the water reaches 45°C.
③Stage 1: The Small Cup button will flash green slowly,, and the other buttons will be off. The machine will continuously dispense about 200ml of water, then pause for 10 seconds. Discard the dirty water and place the cup back.
④Stage 2: The Medium Cup button will flash green slowly, and the other lights will be off. The machine will dispense about 200ml of water, then pause for 10 seconds. Discard the dirty water.
⑤Stage 3: The Large Cup button will flash green slowly, and the other two lights will be off. The machine will dispense about 200ml of water. After this, the machine will return to a constant green light, indicating that the descaling process is complete. The machine will erase the brewing cycle memory and automatically switch to the preheating mode for brewing.
⑥Remove the water tank, clean out any remaining cleaning solution, then fill it with drinkable purified water and clean the machine according to section Manual 5.2 (First Use)