Effective cleaning of the scale of Nivona coffee machine

Appearance on the display of the 601 error code or flashing indicator "Decalc" in the coffee machine Nivona The diagnostic system has recorded a critical accumulation of mineral deposits in the hydraulic circuit. Ignoring this signal leads to a decrease in pressure in the boiler, overheating of the heating element and eventual breakdown of expensive nodes of the brewing unit. The procedure for removing hardness salts, or decalcination, should be carried out strictly according to the manufacturer's regulations, using specialized liquids, since powder analogues can damage seals and electronic water level sensors.

Before starting maintenance, you need to make sure that there are no residues of old liquid in the water tank, and the drip pallet is completely emptied. During operation, the machine will repeatedly pump the solution through the system, so it is important to prepare a capacity of sufficient volume to collect waste water. Incorrect execution of the steps, for example, premature removal of the tank or shutdown of the device, will lead to interruption of the cycle and require repetition of the entire procedure again, consuming the life of the pump.

Modern models such as Nivona CafeRomatica The 5, 6, 7 and 8 series are equipped with automatic programs that control each step of the washing. However, the user must clearly understand the sequence of actions, especially if a forced mode start or reset of the counter is required after using unoriginal chemistry. This manual covers all the nuances of maintenance, including working with the settings menu and eliminating typical problems that occur with hard water.

Preparation for the decalcination procedure

Successful removal of scale directly depends on the quality of the workplace preparation and the correctness of the selected consumables. For coffee machines. Nivona It is highly recommended to use the original liquid Nivona Descaler, which is designed taking into account the materials of the internal tubes and valves of the device. The use of acetic acid or citric acid in the powder is strongly not recommended, since the aggressive environment can cause corrosion of the metal parts of the boiler and destroy rubber seals, which will lead to leaks.

Before starting the program, it is necessary to remove the upper cover of the device and remove the brewing block to access the internal compartments and make sure that there are no foreign objects. The water tank should be thoroughly washed under running water, removing the mucus plaque, which often forms during prolonged contact with the liquid. This will prevent bacteria from entering the hydraulic system during the intensive circulation of the solution.

It is also important to check the condition of the water softener filter if it is installed in the tank. If the filter life has expired, it must be replaced or regenerated in a saline solution, otherwise the decalcination efficiency will be significantly reduced. Some models require activation of the service mode via the menu so that the system correctly doses portions of liquid.

• 💧 Original liquid means for the removal of scale in a volume of at least 500 ml.
• 🧼 Clean water for preparation of solution and subsequent washing (about 1.5-2 liters).
• 🗑️ Large capacity (at least 1.5 liters) for collecting waste water from the cappuccinator and hot water supply nozzle.
• 🧽 Soft fabric for cleaning the external surfaces and pallet.

⚠️ Attention: Never use dishwashers or scale removal products based on hydrochloric acid. They can cause irreversible damage to internal components and nullify the manufacturer's warranty obligations.

Automatic cleaning mode in Nivona models

The start of a standard cleaning program is activated automatically when the machine counts a certain number of cups prepared or if a predetermined time (usually 2 months) has elapsed since the last procedure. The corresponding symbol appears on the display, and the device goes into the waiting mode of the user command. To start the process, you need to press the menu button or a special confirmation key, after which the machine will begin preparing for pumping the solution.

The system itself will determine the required amount of water and funds, if the settings menu Settings > Water Hardness The level of rigidity is correctly set. In the process of operation, the coffee machine will alternate the supply of solution and clean water, making pauses to dissolve the deposits. At this time, the display may display progress bar or flashing indicators signaling the current phase of the cycle.

The user should not interfere with the operation of automation, open the lid or remove the tank until a message appears on the screen about the completion of the stage. Interrupting the process at the stage of acid circulation will lead to the fact that the aggressive substance remains in the boiler, which is dangerous to health at the next turn on. If the cycle was interrupted by accident, the procedure will have to start again after a complete washing of the system with clean water.

Technical details of the cycle

During a pause in the cleaning cycle, the heating element may be briefly switched on to maintain the temperature of the solution, which improves the carbonate dissolution reaction. Don’t be afraid of the noise of the pump at this time.

Color display models, such as series Nivona 8xxProvide more detailed information about the progress of the process, indicating the percentage of execution or a specific step (fence, mixing, washing). Owners of devices with a monochrome screen should focus on the flashing of the symbols of the cups and sound signals.

Step-by-step instruction: mixing and launching

To prepare the working solution, it is necessary to pour 500 ml of clean water at room temperature into the water tank. Then one cap dosage agent (usually 100 ml) of the original decalcinater is added. It is important to observe proportion, since too concentrated solution can foam and cause overflow of the system, and the weak will not cope with a thick layer of scale.

After adding the means, the tank is gently shaken for even stirring of the liquid. The tank is installed in place, and under the hot water supply nose and capuchinator (if connected) is put prepared capacity of at least 1.5 liters. The volume of the tank is critically important, since during the washing process the entire volume of the tank plus the water remaining in the tubes will merge into it.

To start the process on most models, just press the confirmation button (usually a central button with a menu symbol or arrow). The machine will start sucking the solution out of the tank. At this stage, it is important to ensure that the water intake tube does not capture air, otherwise the pump may work idle. If this happens, the process must be stopped, the tube corrected and the cycle resumed.

In some cases, if the car has not been serviced for a long time, the first run may take longer. The system will pump fluid in jerks to break through air traffic jams and soak old deposits in narrow channels. Do not turn off the device from the outlet, even if it seems “hung” – this is the normal operation mode of the high pressure pump.

Manual start and reset cycle counter

In situations where automatic start does not work or urgent prevention is required, you can activate the decalcination mode forcibly through the service menu. To do this, on the machine turned off, press certain buttons at the same time (the combination depends on the model, for example, the steam button and the cup volume button) and turn the device on. In the navigation menu, select a paragraph Decalcify or Scaling removal.

If you have used a third-party remedy or the procedure has not gone through, a manual reset of the cycle counter may be required. This is done through a hidden diagnostic menu, which can be accessed by holding the menu button for 5-10 seconds when the device is on. Find the parameter. Counter > Decalc and set the value to zero or select the option Reset.

Resetting the meter without real physical cleaning can not be done, as this will lead to the operation of the device with a contaminated boiler. The electronics “think” the machine is clean and won’t signal an issue until the next scheduled reminder, which can be fatal for the heating element.

Model Nivona	Combination for entering the menu	Action for launch	Indication of success
5xxx series	Holding the button "Menu" 5 seconds	Choosing a soul symbol	Blinking all indicators
Series 6xx/7xx	Settings button + Cup	The turn of the regulator on the "Start"	Sound signal and text
8xxx series	Menu > Service > Decalcination	Press OK	Animation on screen
NICR 120/130	Pair button + Volume button	Single kick-off	The Decalc indicator is on fire.

After a successful reset of the meter, the machine must go to the normal standby mode. If the error 601 continues to burn after a complete cleaning and discharge procedure, the water flow sensor may have failed or the heating element itself needs to be replaced.

System washing and cycle completion

After the decalcinator solution has completely drained from the tank, the machine will automatically proceed to the washing step or ask the user to replace the contents of the tank with clean water. It is necessary to thoroughly rinse the tank to remove the residue of acid, and fill it with fresh water to the maximum mark.

The washing process can be repeated several times, especially in models with a large boiler. The goal of the stage is to completely displace the chemical solution from all tubes, valves and the brewing unit. Water flowing into the container at this stage may initially have a smell of the remedy or a slight sediment, but by the end of the cycle it should become transparent and odorless.

Do not miss the washing stage, even if it seems that the machine is already “clean”. The residues of acid in the boiler at the next heating can react with coffee, spoiling the taste of the drink, or damage the aluminum parts of the heater. In addition, the acidic environment contributes to the faster formation of new scale in the future.

• 🚿 Rinse the tank 2-3 times between cycles if the water in your area is very hard.
• 👃 Check the smell of leaking water: it should not give away chemistry.
• 💧 Make sure there is no water left in the tank after the program is completed to avoid stagnation.

After all cycles are complete, the machine usually emits a melodic signal and returns the screen to the main menu. Now you can return the brewing block to its place, install a capuchinator and prepare the first cup of coffee. It is recommended to pour the first portion into the sink to clean the millstone and the brewing chamber from possible moisture.

Frequency of service and prevention

The regularity of the scale removal procedure directly depends on the hardness of the water used and the intensity of the operation of the coffee machine. Manufacturers recommend cleaning every 2-3 months or after making 200-300 cups. However, when using high-hardness tap water, the intervals should be reduced to 1-1.5 months.

For extension of service Nivona It is advisable to use filtered or bottled water. Installing a softener filter in the tank (if the model supports) or connecting the machine to a reverse osmosis system significantly reduces the rate of deposit formation. This allows you to increase the intervals between maintenance and keep the pressure in the system at the factory level.

Visual inspection also helps determine the need for maintenance. If the jet of steam from the cappuccinator has become weak and intermittent, and the time for preparing espresso has increased, these are sure signs of overgrown scale channels. In such cases, it is no longer necessary to wait for the 601 error code to appear - you need to start cleaning immediately.

⚠️ Attention: If after cleaning the taste of coffee changed to sour or metal, spend 2-3 additional cycles of pouring with pure water without coffee. This will help to completely wash the residues of the product from the porous structures of the brewing block.

Possible problems and solutions

During operation, users may encounter a situation where the cleaning program does not start or is interrupted halfway. Often the cause is a low water level in the tank or an improperly installed tank, which is why the level sensor does not see the liquid. Check if the tank lid is tightly closed and if the water reaches the bottom.

Another common problem is the formation of excessive foam when using non-original means. The foam can get into the flow sensor and cause a false system error. In this case, you need to let the machine cool, thoroughly wash the system and repeat the cycle with the right remedy, possibly reducing the dosage on the first run.

If the machine is buzzing, but the water is not coming, it is possible that the water intake tube itself has clogged or the pump contacts have oxidized. In such cases, disassembly of the body and mechanical cleaning of the highways are required, which is better to entrust to qualified specialists of the service center.

• 🔇 The car makes noise but does not rock: check the tube in the tank for air traffic jams.
• ⏱️ The cycle lasts too long: the heat exchanger may be heavily contaminated, a repeat procedure is required.
• ❌ The error is not reset: check the integrity of the water flow sensor.

Timely maintenance and use of high-quality chemistry is the key to the long life of your coffee machine. Regular prevention is much cheaper than replacing a boiler or repairing a hydraulics.

What to do if the liquid for cleaning in the middle of the cycle is out?

If the product is finished, and the cycle is not completed, you can not add a new portion of acid to the working system. It is necessary to interrupt the program, completely wash the tank and pour fresh solution, then start the program again. The injection “on the go” will violate the concentration and algorithm of the pump.

Can I use citric acid instead of special products?

Citric acid can be used only as a last resort and in a weak concentration (no more than 10-15 grams per liter). However, the granules may not dissolve completely and clog narrow channels, and the acid is less effective against complex hardness salts than specialized complexes based on sulfamic acid.

How often do I change the filter in the tank?

The softener filter (IFSW) is recommended to be changed every 2 months or after 150 liters of water. Before installation, the new filter must be activated: lowered vertically into the water until the release of air bubbles ceases, then installed in the tank and drain 100 ml of water through the vapor nose to remove air from the system.