Why Limescale is the Enemy of Your Dolce Gusto
If you've noticed your Dolce Gusto machine is taking longer to brew, the coffee temperature isn't quite right, or the flow seems weaker, limescale is a prime suspect. Water, particularly in hard water areas, contains mineral deposits that build up inside your appliance over time. This accumulation, known as limescale, isn't just an aesthetic issue; it directly impacts the machine's heating element, internal pipes, and pump. Without regular maintenance, these deposits can severely reduce efficiency, compromise the taste of your coffee, and ultimately lead to premature breakdowns. Understanding this build-up is the first step to a well-maintained machine.
The process of descaling involves using a specific cleaning solution to break down and flush out these mineral deposits. It's a vital part of routine care, akin to cleaning a kettle or descaling a Nespresso machine. Neglecting this can lead to inconsistent brewing temperatures, reduced water pressure, and an unpleasant taste in your coffee. The internal components, designed for precise water flow and heating, become obstructed, forcing the machine to work harder and less effectively.
For owners of appliances like the Dolce Gusto, where hot water is forced under pressure through coffee grounds, maintaining clear pathways is paramount. Blockages caused by limescale can result in a weaker coffee extraction, or worse, prevent brewing altogether. This is why a structured approach to descaling is not merely a recommendation but a necessity for preserving the machine's functionality and the quality of your daily brew. It directly affects the hot water temperature delivered to the coffee capsule, influencing the extraction process.
Internal Obstructions and Reduced Performance
Limescale particles cling to the internal surfaces of the heating element and water channels. This layer acts as an insulator, meaning the machine has to work harder and for longer periods to heat the water to the optimal brewing temperature. Consequently, energy consumption increases, and the brewing process itself can become less efficient. You might also observe that the steam or hot water dispensed is not as hot as it used to be. This diminished heating capacity is a direct symptom of limescale build-up interfering with the heating element's efficiency.
Furthermore, the internal pipework, which directs hot water to the capsule holder, can become partially blocked. This restricts the water flow, leading to a weaker coffee stream and potentially uneven extraction from the coffee grounds within the capsule. The pressure might not be sufficient to push water through the capsule effectively, resulting in a watery or weak-tasting beverage. It’s a common issue across many types of coffee makers, from traditional espresso machines to pod-based systems.
When you consider the engineering of a machine like the Dolce Gusto, every component plays a role in delivering that perfect cup. The pump's efficiency, the heater's performance, and the integrity of the water pathways are all interdependent. Limescale compromises each of these, creating a cascade effect that degrades the entire brewing experience. Addressing this requires a targeted approach, focusing on how to descale Dolce Gusto machines effectively to restore their intended operation.
The primary impact of limescale is a significant reduction in your machine's operational efficiency and output quality.
Common Mistakes When Descaling Your Dolce Gusto
When tackling the task of how to descale a Dolce Gusto machine, several common errors can inadvertently cause more harm than good. One of the most frequent mistakes is using the wrong cleaning agent. While it might seem intuitive to use household items like vinegar or lemon juice, these can be too acidic or leave residues that damage internal components or taint the coffee's flavour. Vinegar, for instance, can corrode rubber seals and plastic parts over time, and its strong smell can be difficult to fully remove, affecting subsequent brews. This is a widely recognised issue when people try to descale kettles with vinegar or other acidic household cleaners without proper dilution or rinsing.
Another pitfall is not following the manufacturer's recommended descaling frequency or procedure. Dolce Gusto machines, like most coffee makers, have specific requirements for maintenance. Skipping descaling altogether or performing it too infrequently allows limescale to build up to a point where it becomes stubborn and difficult to remove. Conversely, descaling too often without a genuine need can also stress the machine's components unnecessarily. Adhering to the machine's indicators or a set schedule is crucial.
Overlooking the rinsing stage is also a critical error. After running the descaling solution through the machine, a thorough rinsing process is essential to flush out any remaining solution and dissolved limescale. Inadequate rinsing can leave a chemical taste in your coffee and potentially damage sensitive parts. This is why the instructions provided by manufacturers, whether for a Dolce Gusto, a Nespresso, or even a simple kettle descaling kit, always emphasise multiple rinses with clean water.
Incorrect Cleaning Agents and Potential Damage
Many users, in an attempt to save money or because they don't have a specific descaler, resort to using common household acids. While some acids can dissolve limescale, their concentration and chemical composition are often unsuitable for coffee machines. For example, strong acetic acid found in undiluted vinegar can attack rubber seals and plastic tubing, leading to leaks and premature wear. The smell of vinegar can also linger, impacting the aroma and taste of your coffee for weeks, even after multiple rinses. This is a lesson learned the hard way by many trying to remove limescale in kettles or other appliances without manufacturer guidance.
Chemical cleaning agents not designed for coffee machines can also be problematic. Some products might contain abrasives or harsh chemicals that can scratch internal surfaces or react negatively with the materials used in your Dolce Gusto. Always prioritise products specifically formulated for coffee machine descaling, often recommended by the manufacturer themselves. These are designed to be effective against mineral deposits while being safe for the machine's components and neutralising easily during the rinse cycle.
Using unapproved cleaning agents is a significant risk to your machine's internal integrity and can void warranties.
Insufficient Rinsing and Lingering Tastes
A common oversight after completing the descaling cycle is failing to rinse the machine thoroughly. The descaling solution, even when designed for coffee machines, needs to be completely flushed out. If traces of the solution remain in the water tank, pipes, or dispensing head, they can impart an unpleasant chemical or bitter taste to your coffee. This can be particularly noticeable in the first few cups brewed after descaling. It is essential to run several full tanks of fresh water through the machine to ensure all traces of the descaling agent are gone.
This rinsing stage is not just about taste; residual cleaning agents could potentially degrade plastic components or seals over extended exposure. Manufacturers provide specific instructions for the number of rinse cycles required, and it is advisable to follow these meticulously. If you're unsure, erring on the side of more rinses with clean water is always a safer bet than not rinsing enough. The goal is a neutral taste and a clean internal system.
Think of it as washing dishes; you wouldn't serve food on a plate that still has soap residue. The same principle applies to your coffee machine. A thorough rinse cycle ensures that the only flavour you experience is that of your coffee, not the cleaning agent used to maintain the machine. This diligence is key to preserving the quality of your beverage and the health of your appliance.
The Correct Procedure for Descaling Dolce Gusto Machines
To effectively descale your Dolce Gusto machine and avoid the pitfalls mentioned, follow this methodical approach. First, ensure you have the correct descaling solution. This is typically a liquid or powder specifically formulated for coffee machines, often available from the manufacturer or reputable third-party brands. Check your machine's manual for specific recommendations, as using the wrong product can cause damage.
Empty the water tank and remove the water filter if your model has one. Pour the descaling solution into the water tank according to the product's instructions. If using a liquid, it might be a specific ratio with water; if using a powder, it will need to be dissolved. Fill the tank with the appropriate amount of water, again following the descaling product's directions for dilution.
Place a large container, such as a bowl or jug, under the coffee spout to catch the descaling liquid. Ensure there is no coffee capsule in the machine. Turn on the machine and run a hot water cycle, or select a specific descaling function if your model has one. Allow the machine to dispense the entire contents of the water tank. You may need to pause the machine periodically, as per the descaling solution's instructions, to allow the solution to work within the internal components.
Step-by-Step Descaling Process
- Preparation: Empty the water tank and remove any water filter. Ensure the drip tray is in place to catch drips.
- Solution Mixing: Pour the recommended amount of descaling solution into the water tank. Add fresh water up to the MAX line, or as directed by the descaling product.
- Initial Flush: Place a large container under the spout. Without a capsule, run one full tank of the descaling solution through the machine. Select a medium-sized cup setting if available, or just run the hot water function.
- Soaking (Optional but Recommended): Some descaling solutions recommend letting the solution sit in the machine for a period (e.g., 15-30 minutes) to allow it to break down stubborn limescale. Refer to your descaling product's instructions.
- Complete Flush: Run the remaining descaling solution through the machine, again using a large container. Repeat this process until the tank is empty. You may need to refill the tank with the descaling solution if it empties before you've run it all through.
Thorough Rinsing Cycles
Once the descaling solution has been completely flushed through the machine, it is crucial to rinse away any residue. Empty and thoroughly rinse the water tank with fresh water. Refill the tank with clean, fresh water. Place a clean container under the spout and run one or two full tanks of clean water through the machine, just as you did with the descaling solution. This ensures all traces of the descaling agent are removed, preventing any impact on the taste of your coffee and protecting the machine's internal parts from chemical residue.
Repeat the rinsing process with fresh water at least twice, or more if you detect any unusual smell or taste from the initial rinses. It's better to be safe than sorry when it comes to the purity of your water supply for brewing coffee. Some users prefer to run a 'half-tank' rinse cycle and repeat it more times for a more gradual flushing effect. The key is to ensure the water coming out is completely clear and odourless.
The rinsing phase is non-negotiable for both taste and machine longevity.
Reinstalling and Final Check
After the final rinse, reinsert the water filter if you removed one. Ensure all parts are dry and properly assembled. Turn on the machine and run a final cycle with plain water to confirm everything is functioning correctly and that no residual taste or smell remains. You can then proceed to make your first cup of coffee with a clean, descaled machine, ready to enjoy its full flavour.
How Often Should You Descale Your Dolce Gusto?
Determining the correct frequency for descaling your Dolce Gusto machine is key to preventing limescale build-up without overdoing the maintenance. The most accurate indicator is often the machine itself. Many Dolce Gusto models feature a 'descale' or 'clean' indicator light that illuminates when the machine detects a build-up and requires descaling. This light is designed to alert you based on the machine's internal usage and water flow patterns, making it a reliable prompt.
However, relying solely on the indicator light can sometimes mean you've waited a little too long, especially if you are in a hard water area. Generally, manufacturers recommend descaling every 3-6 months, depending on usage and water hardness. If you use your machine multiple times a day, especially in a region known for hard water, you will need to descale more frequently. Conversely, if you only use it occasionally and live in a soft water area, you might be able to stretch this interval.
A practical approach is to combine the manufacturer's recommendation with your local water conditions and machine usage. If you're uncertain about your water hardness, you can often find this information from your local water provider. Observing changes in the machine's performance, such as slower brewing times or a weaker coffee flow, can also signal that it's time for a descale, even if the indicator light hasn't come on yet. This proactive approach helps maintain optimal performance and longevity.
Factors Influencing Descaling Frequency
The primary factor is water hardness. In areas with high mineral content (hard water), limescale forms much more rapidly. If your kettle or shower heads frequently accumulate visible limescale, your Dolce Gusto will require more frequent descaling. In contrast, if you live in a soft water area, the build-up will be slower, and you can descale less often. This is a universal principle that applies when considering how to descale kettle, how to descale espresso machine, or any water-heating appliance.
Machine usage is another critical factor. A machine used daily for multiple coffees will accumulate limescale faster than one used weekly. If your household uses the machine frequently, aim for descaling every 2-3 months. For moderate use (a few times a week), every 4-6 months is typically sufficient. Low usage might extend this to 6-12 months, but always keep an eye on performance indicators.
Finally, consider the type of water you use. If you use filtered water or bottled water with low mineral content, this can significantly reduce the rate of limescale accumulation, potentially extending the time between descaling sessions. However, even filtered water can contain dissolved minerals. Always consult your machine's manual for the manufacturer's specific guidance, as different models may have varying recommendations based on their design and components.
When to Descale: Indicators and Observations
- Indicator Light: Most models have a dedicated light. Do not ignore it.
- Slower Brewing: Water flow decreases, and brewing takes longer than usual.
- Reduced Water Temperature: Coffee is not as hot as it should be.
- Unusual Noises: The machine may make different sounds due to obstructed water flow.
- Visible Mineral Deposits: Though internal, sometimes faint white residue can be seen near the water outlet if you look closely.
Regular checks and adherence to your machine’s indicators are crucial for timely descaling.
Alternative Descaling Solutions: Pros and Cons
While dedicated coffee machine descaling solutions are the most recommended method for how to descale Dolce Gusto machines, some users explore alternatives. Understanding the trade-offs is vital. The most common alternative is vinegar, typically white distilled vinegar. Its primary advantage is its widespread availability and low cost. Vinegar is a mild acid that can dissolve mineral deposits. However, its potent smell can permeate the machine and linger, affecting coffee flavour for multiple cycles. More critically, its acidity can degrade rubber seals and plastic components over time, leading to leaks and premature wear. This is a significant concern for intricate coffee machines.
Another commonly cited method involves using citric acid. Citric acid is a natural acid found in citrus fruits and is often an ingredient in commercial descalers. It is generally considered safer for coffee machines than vinegar, as it's less corrosive and easier to rinse away. When dissolved in water, it effectively breaks down limescale without leaving a strong odour. However, ensuring the correct concentration is important; too weak and it might not be effective, too strong and it could potentially cause issues, though this is less common than with harsher chemicals.
The overarching consideration when choosing an alternative is safety and efficacy. While DIY solutions might seem economical, they carry risks if not used correctly. Commercial descalers are formulated to be effective against limescale while being safe for the specific materials used in coffee machines. If you choose an alternative, always research its compatibility and follow instructions meticulously. For instance, when people search for how to descale kettle with vinegar, they often overlook the rinsing and potential damage. The same caution applies here.
Vinegar: The Risky Household Staple
Vinegar's appeal lies in its accessibility. You likely already have it in your kitchen. However, its aggressive nature is its downfall when it comes to coffee machines. The acetic acid in vinegar can attack the rubber gaskets and plastic tubing inside your Dolce Gusto. These components are sensitive and can become brittle, crack, or swell when exposed to strong acids, leading to leaks during operation. Furthermore, the pervasive smell of vinegar can be incredibly difficult to eliminate from the machine's internal pathways and water tank. This means your coffee might taste and smell like vinegar for a considerable time after the descaling process, ruining the brewing experience.
While some suggest diluting vinegar significantly, the risk of residual odour and potential material degradation remains. It’s a method that is often employed for simpler appliances like how to descale a kettle, where the risk of lingering smell or component damage might be less critical or easier to manage. For a complex appliance like a Dolce Gusto, the consequences of using an inappropriate descaler can be severe, potentially requiring costly repairs or replacement.
The long-term damage from vinegar can far outweigh any perceived short-term cost savings.
Citric Acid: A Safer, Natural Option
Citric acid is a more viable natural alternative for descaling coffee machines, including Dolce Gusto models. It's a food-grade acid that effectively tackles limescale without the harshness or lingering odour associated with vinegar. It's readily available in powder form from pharmacies or online retailers. To use it, typically a tablespoon or two of citric acid powder is dissolved in a full water tank. The process then follows the standard descaling procedure: run the solution through the machine, let it sit if recommended, and then rinse thoroughly with multiple tanks of clean water.
The key advantage of citric acid is its relative safety for machine components and its neutral aftertaste when properly rinsed. It works by breaking down the calcium carbonate that forms limescale into more soluble compounds. Unlike vinegar, it doesn't typically leave a strong, persistent odour. However, it is still an acid, so using it too frequently or in incorrect concentrations could theoretically cause issues, though it is generally considered much gentler than vinegar. For those seeking a natural descaler, citric acid is a prudent choice, provided it is used with care and followed by extensive rinsing.
It is important to distinguish between different types of citric acid. Ensure you purchase food-grade citric acid intended for consumption or cleaning applications. Industrial-grade acids may contain impurities that could be harmful. Always follow the recommended dilution ratios for descaling purposes to ensure both efficacy and safety for your appliance.
Maintaining Your Dolce Gusto Between Descales
While descaling is a critical periodic maintenance task, several daily and weekly habits can significantly reduce the rate of limescale build-up and keep your Dolce Gusto machine in optimal condition. The most impactful daily habit is to empty and rinse the water tank after each day's use. This prevents stale water from sitting in the tank and reduces the chance of mineral deposits starting to form prematurely. It also helps keep the tank hygienic.
After each use, it's also advisable to run a cycle of hot water through the machine without a capsule. This simple step flushes out any coffee grounds or milk residue that might have lodged in the capsule holder or the dispensing nozzle. Such residues can attract bacteria and contribute to blockages, which can mimic the symptoms of limescale build-up. A quick rinse ensures that only clean water passes through the system during the next brew.
Wiping down the exterior of the machine regularly, especially around the capsule holder and dispensing area, helps maintain hygiene and prevents external build-up from affecting internal components. Consider using a damp cloth to wipe away any coffee splashes or drips. These small, consistent efforts contribute significantly to the overall health of your machine, potentially extending the time between more intensive descaling sessions and ensuring a better-tasting coffee every time.
Daily Cleaning Rituals
Rinse the Water Tank Daily: After finishing your last coffee, empty any leftover water from the tank and give it a quick rinse with clean water. Refill it with fresh water for the next use. This simple action minimises the time minerals have to settle and form scale.
Flush After Each Use: Always run a cup's worth of hot water through the machine after brewing a coffee, especially if you use milk-based pods. This purges residual coffee and milk, preventing blockages and residue build-up in the spout and internal lines.
Wipe Down the Exterior: Use a soft, damp cloth to clean the outside of the machine, the drip tray, and the capsule holder. This removes coffee drips and dust, keeping the machine looking good and preventing external grime from affecting its operation.
Weekly Checks and Deeper Cleans
Once a week, it’s beneficial to perform a slightly more thorough clean. Remove the drip tray and the capsule holder and wash them thoroughly with warm, soapy water. Rinse them well and dry them completely before reassembling. This ensures no dried coffee or milk residue remains, which could harbour bacteria or cause minor blockages. For machines with removable water filters, check the filter's condition; if it appears dirty or clogged, it might need cleaning or replacing according to the manufacturer's instructions.
Some users also opt for a deeper clean of the capsule holder area. You can use a small brush (like a toothbrush dedicated to cleaning) to gently scrub around the needle that pierces the capsule. Be careful not to damage the needle. This ensures that coffee grounds do not get trapped and affect the water flow. Regular cleaning prevents these small issues from escalating into problems that might require descaling sooner than necessary.
Consistent daily and weekly cleaning routines are the most effective way to minimise the need for frequent descaling.
Using Filtered Water
If you are in a hard water area, consider using filtered water in your Dolce Gusto machine. Water filters, whether built into the machine or separate jug filters, can remove a significant portion of the minerals that cause limescale. While this doesn't eliminate the need for descaling entirely, it can drastically slow down the rate of mineral build-up. This means you might be able to extend the intervals between descaling sessions, and when you do descale, the process might be quicker and easier.
Ensure you follow the manufacturer's instructions for your specific water filter system. This usually involves replacing the filter cartridge at recommended intervals to maintain its effectiveness. Using an old or ineffective filter will not provide the desired protection against limescale. Investing in a good water filter can be a cost-effective way to protect your machine and improve the taste of your coffee, especially in areas with particularly hard water.
Troubleshooting Common Descaling Issues
Even with careful execution, you might encounter issues when trying to descale your Dolce Gusto machine. One common problem is the descaling indicator light not turning off after the process. This can happen if the machine hasn't registered the full descaling cycle correctly, or if a full rinse wasn't completed. Sometimes, a specific sequence of button presses is required to reset the indicator after descaling. Consult your machine's manual to find out if there's a reset procedure for your particular model. If the light persists, it might indicate a more significant issue with the machine's internal sensors.
Another issue is the descaling solution not flowing through the machine properly, or flowing too quickly. If it's too slow, it could indicate a blockage that the descaling solution hasn't yet broken down. If it flows too fast, it might mean the solution isn't potent enough, or the machine's pump is struggling. Ensure you're using the correct concentration of descaling solution as per the product instructions. If the flow is significantly impaired, a second, more intensive descaling cycle might be necessary, or you may need to consider professional servicing.
Weak coffee or no coffee after descaling is also a concern. This usually points to incomplete descaling, residual blockage, or an issue with the pump. Double-check that all descaling solution and rinsing water have been run through the machine. If the problem persists, the blockage might be too severe for standard descaling. It's also possible that the pump's efficiency has been compromised. In such cases, seeking advice from the manufacturer's customer support or a qualified repair technician is the next logical step.
Indicator Light Not Resetting
Many users find the 'descale' light remains illuminated even after completing the descaling and rinsing process. This is often resolvable by performing a specific reset sequence. For instance, some models require you to press and hold a particular button combination for several seconds after the descaling is finished and the machine has been refilled with fresh water. Always refer to your Dolce Gusto model's user manual for the precise reset steps. If the manual doesn't provide a solution, contact customer support. It's possible that not enough solution was used, or the rinse cycles were insufficient, tricking the machine's internal counter.
If the light still doesn't go off after trying the manual reset, it might be a sign that the machine's internal timer or sensor is malfunctioning. While less common, this can happen. In such scenarios, the machine may still function correctly, but the persistent light can be annoying. Documenting the issue and contacting manufacturer support for potential repair or replacement advice is recommended. Do not attempt to open the machine yourself unless you are technically skilled, as this can void warranties.
Consult your machine's manual for specific reset instructions to clear the descaling indicator.
Flow Issues During or After Descaling
A common symptom of limescale build-up is reduced water flow. If your Dolce Gusto is dispensing water very slowly during the descaling process, or even after, it indicates persistent blockages. Ensure you are using a descaling solution that is effective and diluted correctly. If the problem persists, running a second descaling cycle might help. Sometimes, a more stubborn blockage requires breaking down over multiple treatments. If the flow remains significantly weak, it might be time to check for external blockages around the spout or needle assembly, or to consider professional cleaning.
Occasionally, the pump itself can be affected by severe limescale. If the pump sounds strained or fails to draw water effectively even after descaling, it could be damaged. In such cases, a descaling solution might not be sufficient, and the pump may need repair or replacement. This is more common in machines that have been neglected for extended periods. Regular descaling and cleaning are the best preventative measures against pump failure.
Taste and Temperature Problems
If your coffee tastes weak, bitter, or not hot enough after descaling, it points to an incomplete process or residual contaminants. Ensure you have performed adequate rinsing cycles. Any remaining descaling solution can significantly impact flavour. If you've used vinegar, the lingering smell can affect taste for days. Try running several more tanks of plain water through the machine. If the problem persists, and you've confirmed the water is hot enough when dispensing, the issue might be with the coffee capsule itself or the coffee extraction due to remaining internal build-up.
Bitter tastes can also arise from old coffee oils, not just limescale. While descaling focuses on mineral deposits, a general cleaning of removable parts and the capsule holder can address coffee oil build-up. If temperature is the issue, and the descaling process was thorough, it might point to a fault with the heating element itself, which would require professional assessment. A properly descaled machine should restore optimal temperature and flavour extraction.
When to Seek Professional Help
While most Dolce Gusto machines can be kept in excellent working order through regular descaling and cleaning, there are times when professional assistance is warranted. If, after diligently following the descaling process and performing all recommended cleaning routines, your machine continues to exhibit problems, it might be time to consult an expert. Persistent issues such as a non-functioning indicator light, significantly reduced water flow that doesn't improve, or a complete failure to heat water could indicate a more serious internal fault that standard maintenance cannot resolve.
For example, if the heating element has failed, or if a component within the pump system is damaged beyond the scope of descaling, a repair technician will have the necessary tools and expertise to diagnose and fix the problem. Attempting complex repairs yourself without the correct knowledge can lead to further damage, potentially making the machine irreparable or voiding any remaining warranty. It's always prudent to check your warranty status before considering professional repairs, as some issues may be covered.
Additionally, if you are uncomfortable performing the descaling process, or if your machine's manual is unclear, seeking guidance from the manufacturer's customer service or a trusted appliance repair specialist is a wise choice. They can provide specific advice tailored to your model, or guide you through troubleshooting steps. Sometimes, a simple phone call can save you from unnecessary stress or costly mistakes. Remember, prevention through regular maintenance is always better than cure.
Signs Your Machine Needs Expert Attention
- Persistent Error Lights: If descaling and reset procedures fail to clear indicator lights for faults or cleaning.
- Complete Power Failure: If the machine shows no signs of life after checking the power source.
- Severe Leaks: Water pooling excessively around the base or from unintended areas, suggesting damaged seals or housing.
- No Heating: Water dispenses but remains cold, indicating a potential heating element failure.
- Pump Malfunction: The pump makes unusual noises or fails to draw water entirely.
Where to Find Support
The first point of contact for any issues with your Dolce Gusto machine should ideally be the manufacturer's official customer support. They can provide model-specific troubleshooting advice, offer guidance on repairs, and inform you about warranty coverage. You can typically find contact details on the manufacturer's website or within the machine's user manual. They may also direct you to authorised service centres for more complex repairs. If your machine is out of warranty, you might consider independent appliance repair specialists. Look for services with good reviews and experience in repairing coffee machines.
When seeking professional help, be prepared to describe the problem in detail, including the steps you've already taken, such as descaling frequency and methods. This information will help the technician diagnose the issue more efficiently. If you decide to use a non-authorised repair service, ensure they offer a warranty on their work to protect your investment. Sometimes, the cost of repair may approach the cost of a new machine, especially for older models, so weigh your options carefully.
Don't hesitate to contact official customer support for issues that persist after diligent descaling and cleaning.