A decrease in the pressure of the steam jet and the appearance of a characteristic hum during brewing indicate that the Nivona coffee machine requires immediate cleaning of scale and coffee oils. Ignoring these symptoms leads to clogging of the hydraulic system, overheating of the thermoblock and, as a result, to expensive repairs or complete replacement of the heating element. Regular Maintenance automatic coffee machine not only extends the life of the device, but also preserves the rich espresso taste that cannot be obtained from a dirty system.
Recovery process Nivona is divided into several stages: daily hygiene, decalcification (removal of mineral deposits) and deep cleaning of the brewing unit from fatty contaminants. The owner must clearly distinguish between these procedures, since using a descaling agent instead of an oil cleaner will not work, and in some cases may damage the seals. The correct algorithm of actions depends on the model of your device, be it the 5xx, 7xx or 8xx series, but the basic principles of hydraulic maintenance remain the same for the entire brand.
Before starting any manipulations, be sure to make sure that the device is disconnected from the power supply, unless the instructions require otherwise. Many users make the mistake of starting cleaning immediately after making coffee while the internal components are still hot, which can result in burns or thermal shock to the plastic parts. It is critical to use only specialized products approved by the manufacturer, as harsh household chemicals will attack food-grade plastics and rubber seals.
Daily care and automatic rinsing
Basic hygiene Nivona coffee machines begins with the execution of automatic washing programs, which the device launches independently when turned on and off. These cycles are necessary to rinse the internal tubes and brewing unit from any remaining ground coffee, preventing them from souring and mold. It is strictly not recommended to interrupt this process, since a wet coffee suspension remains in the system, which after a few hours turns into a dense plug.
In addition to automatic cycles, the user must manually monitor the status of the drip tray and pulp container. Overfilling these containers may cause the mechanism to become blocked and an overflow error to appear on the display. It is also worth regularly wiping the external surfaces and the coffee outlet area with a damp cloth, removing splashes of milk and coffee, which form a sticky coating when dry.
- 🧼 Rinse the removable brewing unit daily under warm water without using detergents.
- 💧 Change the water in the tank every 24 hours, even if it has not run out, to avoid stagnation and bacterial growth.
- ☕ Wipe the cappuccino maker with a damp cloth immediately after frothing the milk, preventing the protein from drying out in the tubes.
- 🗑️ Empty the coffee grounds container whenever the corresponding indicator appears on the control panel.
⚠️ Attention: Never use abrasive sponges or aggressive solvents to clean the external surfaces and display, as this will cause micro-scratches and clouding of the plastic.
Decalcification procedure: descaling
Scale is the main enemy of any heating element, and Nivona coffee machine is no exception. Hard water leads to the formation of a layer of calcium carbonate inside the thin tubes and thermoblock, which impairs heat transfer and increases the load on the pump. Series devices Nivona 7 and 8 equipped with an intelligent hardness control system, which itself will tell you when it’s time for decalcification by flashing the corresponding indicator or message on the screen.
To carry out the procedure, you must use a liquid descaling agent specially designed for coffee equipment. Powdered acids or citric acid may not completely dissolve and may damage the plastic valves or leave a residue. The process takes about 30-40 minutes and requires a large container for draining dirty water with a volume of at least 1.5 liters.
The algorithm for starting the program may differ slightly depending on the model, but the general principle is the same: the product is poured into the water tank, after which a special mode is launched through the service menu. The machine will alternately pass the solution through the system and pause to allow the chemical reaction time to dissolve the deposits. It is important to monitor the fluid level and add clean water in time for the final rinse so that there is no acid left in the system.
☑️ Checklist before decalcification
Deep cleaning of the brewing unit from oils
Coffee beans contain essential oils, which during the brewing process remain on the walls of the brewing unit and gradually oxidize, giving the drink a burnt taste. Unlike scale, these deposits are not dissolved by acids, so the use of a special fat cleaner (Cleaner) is required. In models Nivona With automatic cleaning tablets, the process is simplified as much as possible and controlled electronically.
If your model does not support automatic cleaning with tablets or is very dirty, the infuser unit must be removed manually. To do this, open the service door, press the latches and carefully remove the mechanism. Rinsing under the tap removes only surface dirt, so once every 1-2 months it is recommended to soak the block in a cleaner solution for 15-20 minutes.
After soaking, rinse all parts thoroughly under running water, paying special attention to the strainers and moving joints. There is no need to lubricate the mechanism after each cleaning, since this is not necessary when using high-quality tablets, but checking the mobility of the parts is mandatory. If the parts move slowly, there may be some residue left on them, and the procedure needs to be repeated.
Does the brewing unit need to be lubricated?
Lubrication of the brewing unit is required extremely rarely and only with special food-grade lubricants. In most cases, if the block moves stiffly after cleaning, the problem is not a lack of lubrication, but scale residue or improper assembly. Excessive lubrication will cause the coffee to smell like machine oil.
Maintenance of cappuccino maker and milk systems
The milk system is the most vulnerable point in the hydraulic chain, since milk is an ideal breeding ground for bacteria. In coffee machines Nivona With an automatic cappuccino maker (for example, 8xx series), a milk circuit rinsing program is provided, which must be started after each preparation of a milk drink. Ignoring this rule will result in an unpleasant odor and spoil the taste of your next cappuccino.
For deep cleaning, the removable milk container and all connecting tubes must be disassembled once a week and washed in warm water and a mild detergent. Pay special attention to the milk collection area and valves, where protein clots often accumulate. Some models allow you to flush the system with a special liquid for milk circuits, which ensures the sterility of the internal channels.
| Type of pollution | Cleaning agent | Frequency | Consequences of ignoring |
|---|---|---|---|
| Scale (minerals) | Liquid decalcifier | By machine signal / once every 3-6 months. | Noise, low pressure, thermoblock failure |
| Coffee oils | Cleaner tablets | Once every 1-2 months | Bitterness in coffee, block jamming |
| Milk protein | Warm water + special liquid | Daily (washing), weekly (washing) | Sour odor, bacterial contamination |
| Coffee dust | Dry brushing | Each time you load beans | Slipping of the millstones, uneven grinding |
⚠️ Attention: It is strictly forbidden to wash the brewing unit or milk container in the dishwasher. High temperatures and aggressive detergents deform the plastic and destroy the seals.
Adjusting the millstones and cleaning from dust
The quality of the grind directly affects the extraction of coffee, and over time the grinders can become clogged with fine dust or require adjustment. If you notice that the coffee is flowing out too quickly or, conversely, the stream is intermittent, it may be time to clean the bean hopper and adjustment mechanism. Before any actions with the millstones, the machine must be turned off and cooled.
To clean, remove all beans from the hopper and use a small brush or blower to blow dust out of the burr area. The degree of grinding is adjusted using a special regulator, which is usually located inside the grain hopper. You can change the settings only while the coffee grinder is running, so as not to damage the adjustment mechanism.
Expert Tip: If the grind does not change after cleaning and adjusting, the burrs may be worn out. The service life of ceramic millstones is about 30,000 cups, while metal ones are less. In this case, replacement of the unit is required.
Typical errors and fault codes
Electronics Nivona Diagnoses system status and displays error codes or text messages on the display. Understanding these signals helps you quickly determine which part of the system requires attention. For example, a message about filter replacement or expiration of life is often confused with the need for decalcification, although these are different procedures.
If the machine says “Rinse” or draws a watering can, this is a signal to start the rinse cycle. An error related to pressure may indicate severe scale contamination of the hydraulic system. The table below shows the main indications and how to resolve them.
- 🔴 Flashing red circle - immediate attention is required (out of water, tray full, brewing error).
- 🟡 Flashing yellow indicator - warning (it’s time to clean, the product is running low, the water level is low).
- 💧 The watering can symbol indicates the need for a washing or decalcification program.
- ⚙️ Gear symbol - maintenance mode or need for service intervention.
⚠️ Attention: If after carrying out all the cleaning procedures the error does not disappear, do not try to disassemble the thermal block or electronic boards yourself. Doing so may void your warranty and cause electric shock.
Main conclusion: Regular cleaning of the Nivona coffee machine with special products is not just a recommendation, but a prerequisite for maintaining the warranty and obtaining delicious coffee.
FAQ: Frequently asked questions
Is it possible to use citric acid instead of a special product?
The use of citric acid is not recommended by manufacturers Nivona. The acid crystals may not completely dissolve and damage plastic valves, and it is less effective against complex scale compounds that form at high temperatures than professional chelates.
How often should you change your water filter?
Filter resource Claris or similar is approximately 2 months or 50 liters of prepared coffee (depending on water hardness and frequency of use). After the filter has expired, you must replace it and activate a new one in the machine menu to reset the counter.
Why did my coffee turn sour after cleaning?
Most likely, decalcification agent remains in the system. It is necessary to run the rinsing program 1-2 more times. If an oil remover was used, the tablet may not have completely dissolved or the cycle may have been interrupted.
What should I do if the brewing unit does not fit back in?
Make sure the unit is assembled correctly and latched. Before installation, check for any foreign objects in the niche. The block should go in easily, without much pressure. If it gets stuck, try rocking it slightly from side to side to align the guides.