Why is My DeLonghi Coffee Machine Not Pumping Water?

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When your DeLonghi coffee machine doesn’t work, it’s disappointing, especially when you want your morning coffee. When the machine doesn’t pump water properly, it can disrupt your coffee routine and more. Don’t worry, others have this problem too and there are simple solutions.

This article will explain why your DeLonghi coffee machine has a problem and provide simple steps to fix it. We’ll discuss checking for common problems, the importance of cleaning and maintenance, and fixing specific issues like airlocks and pump problems. After this help, you’ll know why your coffee machine isn’t pumping water and how to fix it for your daily coffee.

Checking the Basics

Let’s begin with the basics before diving into troubleshooting. To fix a DeLonghi coffee machine not pumping water, check these basic factors. Follow these steps to save time and effort:

Power and Plug

First, ensure your coffee machine is properly plugged in. Loose plugs or accidental disconnections can be the problem. Verify the power source and outlet functionality. Check the extension cord for any damage before using it.

Water Reservoir

The water reservoir supplies water for brewing coffee. Make sure it’s securely placed in the machine. Incorrect positioning prevents water drawing by the machine. Also, ensure sufficient water in the reservoir. Low water levels may cause the coffee machine to not pump water. Remember to refill as needed.

Coffee Grounds

Coffee grounds can clog the water system. Inspect the coffee filter for cleanliness. Remove any coffee grounds blocking the filter or spouts. Regularly clean the coffee filter and surrounding area to prevent this issue.

Delonghi Coffee Machine Model

Note that troubleshooting steps may vary based on your specific DeLonghi coffee machine model. Each model’s unique features or characteristics may impact its operation. Always consult your machine’s user manual for model-specific instructions. The manual offers valuable info on operating and maintaining your coffee machine model.

By thoroughly checking these basics, you can often resolve the issue of your DeLonghi coffee machine not pumping water. Simple solutions often work well. If the issue continues, try more advanced troubleshooting steps.

Cleaning and Maintenance

Regular cleaning and maintenance are essential for optimal performance of your DeLonghi coffee machine. Ignoring these aspects can cause problems like your machine not pumping water. Maintain your coffee maker for optimal performance.

Delonghi coffee machine water not going through

Cleaning the Tank

Clean the water tank regularly to maintain the functionality of your coffee machine. Clean the water tank regularly. Wash it with warm, soapy water and rinse well to remove all soap residues. If not cleaned, the tank can gather impurities and minerals that block the water flow. Keeping it clean ensures a steady water supply for your coffee.


Descaling is essential for coffee machine maintenance, especially in areas with hard water. Mineral deposits accumulate in the internal components, reducing machine efficiency over time. To descale your DeLonghi coffee machine:

  • Refer to your user manual for the recommended descaling solution or suitable alternatives for your model.
  • Fill the reservoir with the descaling solution and water according to the instructions.
  • Run a descaling cycle as per your machine’s instructions. Typically, this involves running the machine with the solution, flushing it through the coffee spouts, and rinsing with clean water.
  • Thoroughly rinse the machine to remove any remaining descaling solution that can affect the coffee taste.

Regular descaling is necessary, based on water hardness. It’s usually advised every 2-3 months for hard water areas, but check your machine’s manual for specific instructions.

Cleaning Coffee Spouts

Coffee residues can build up in spouts over time, limiting water flow. To prevent this, clean the coffee spouts regularly with a soft brush or toothpick. Ensure no obstructions hinder water flow. Keeping these parts clean ensures proper water flow and maintains the taste and quality of your coffee.

Regular Maintenance is Important

Follow the manufacturer’s maintenance recommendations. This may include:

  • Some DeLonghi coffee machines require occasional lubrication of moving parts to prevent wear and tear.
  • Replace water filters as directed. This ensures clean and pure water for brewing.
  • Inspect your machine regularly for wear or damage. Report issues promptly to prevent further problems.

Regular maintenance extends the coffee machine’s lifespan and ensures consistent great-tasting coffee. Follow these cleaning and maintenance practices to prevent issues like a DeLonghi coffee machine not pumping water.

Airlock Removal: Restoring Smooth Flow

An airlock may cause your DeLonghi coffee maker to stop pumping water. Knowing what an airlock is and how to remove it solves this annoying issue.

What is Airlock?

A coffee machine airlock is a pocket of air in the water system. This blockage stops water from flowing through the system. With water tanks and pumps, DeLonghi coffee makers often use airlocks. Moving or tilting the machine or not using it for a while might cause them.

Airlock Removal

Thankfully, airlock removal is easy and seldom requires tools. Step-by-step instructions:

  • Make sure the water reservoir is full. Water pressure is needed to remove the airlock.
  • Before continuing, empty the coffee filter of the coffee grounds. The airlock may get clogged by coffee grounds.
  • Turn on the coffee machine without coffee in the filter. Use the usual coffee brewing mode. This process builds system pressure and is crucial.
  • Let the machine operate uninterrupted. You should hear water pumping after a few minutes. The machine may first spew air and water combined with air, so watch carefully. This indicates airlock movement, which is excellent.
  • Regular Check: Watch the machine until it dispenses water steadily. After pushing out the airlock, your machine should be ready to make your favorite coffee.

Be patient throughout this procedure. Some machines need many cycles without coffee to eliminate the airlock. If the issue continues after multiple tries, check your machine’s user manual or DeLonghi’s customer care.

Troubleshooting Common Issues: Get Your Delonghi Coffee Machine Back on Track

A DeLonghi coffee machine that won’t pump water may ruin your morning. Many typical causes of this condition are readily discovered and fixed. This detailed guide will cover common issues and remedies so you may enjoy your coffee uninterrupted.

Clogged Coffee Filter

DeLonghi coffee machines that won’t pump water often have blocked filters. Coffee grounds might clog the filter, blocking water flow. What to do:

  • Removing coffee grounds from the filter is the first step. Completely empty it.
  • The filter should be removed and cleaned thoroughly. Coffee grinds may be removed with warm, soapy water and a gentle brush.
  • Remove the filter and look about for more. Make sure no coffee grounds get into the coffee spouts.
  • Reassemble everything after cleaning the filter and surrounding region. Position and secure the filter.
  • After cleaning the filter, restart the machine. It should pump water and make coffee.

Pump Damage

A faulty DeLonghi coffee machine pump won’t provide enough pressure to pump water. This is very severe and may need expert help. What you can do:

  • Check for Pump Failure: Repairing your equipment yourself might invalidate your warranty. Instead, contact DeLonghi’s customer care or authorized service center.
  • Check the Warranty: Verify your machine’s warranty. Contact DeLonghi’s customer care for a repair or replacement. Call with your machine’s serial number and purchasing information.
  • Professional Assessment: If your system is out of warranty, visit an authorized repair shop. A professional can diagnose and repair or replace the pump.

Water Quality

The water quality in your DeLonghi coffee machine affects its performance. Mineral-rich hard water may cause blockages. Addressing this issue:

  • If your water is hard, try filtered water. This may decrease machine mineral accumulation.
  • Hard water locations need it. Descaling solution and process instructions are provided by the manufacturer. Descaling removes mineral deposits from machine components, guaranteeing smooth operation.
  • Clean your coffee machine’s water tank, spouts, and other parts regularly. This inhibits mineral buildup.

Maintaining your unit and using filtered water may keep your DeLonghi coffee maker running smoothly.

Steam/hot Water Dispensing

DeLonghi coffee machines may be able to produce steam or hot water but not coffee. This frequently indicates a coffee dispensing system trouble. Addressing it:

  • Achine components, clean the coffee dispensing system periodically. Coffee grounds and residue should not clog coffee spouts.
  • Check the coffee spouts and other parts.
  • Like other machine components, clean the coffee dispensing system periodically. Coffee grounds and residue should not clog coffee spouts.
  • If you can’t identify or fix the problem, get help. To diagnose and repair the coffee dispensing system, contact DeLonghi customer support or an authorized service facility.

Finally, a DeLonghi coffee maker not pumping water might be caused by a clogged coffee filter or more serious internal difficulties. Troubleshooting these problems carefully helps you find and fix them.

How Can I Tell If My Delonghi Coffee Machine’s Pump is Damaged?

Checking your DeLonghi coffee machine’s pump for damage requires a few observations. The pump must provide enough pressure to push water through the coffee machine. When it breaks, the machine may not pump water. How to spot pump issues:

No Water Flow

Lack of water flow is a clear indicator of a broken pump. If your coffee machine is silent and doesn’t release water during brewing, the pump may be the problem.

Unreliable Water Pressure

A faulty pump may cause water pressure fluctuations. Water that bursts out unevenly or with changing power might disturb the brewing process and produce poor coffee.

Strange Noises

Pumps that are straining or broken might make strange sounds. Listen closely while brewing. If the pump makes unusual noises like clanking or grinding, it may be broken.

Small Water Output

While water may flow, a faulty pump may dramatically limit water flow. This may cause undersized or overstrong coffee, indicating a pump malfunction.

Priming Failure

At startup, many DeLonghi coffee machines prime the pump for brewing. If the machine consistently fails to prime or struggles, the pump is faulty.

Is It Safe to Use Tap Water in My Delonghi Coffee Machine?

Tap water in your DeLonghi coffee maker is safe, although hard water in your location requires certain precautions. Hard water has more calcium and magnesium, which might cause coffee machine problems over time:

  • Mineral Buildup: Hard water deposits minerals in boilers, pipelines, and pumps. Clogs and inefficiency might result from this accumulation.
  • Taste: The coffee flavor may be affected by hard water. Minerals may make your beer taste harsh or metallic.

Certain actions may fix certain issues:

Filter Water

Filtered water is a simple and efficient solution for hard water or tap water quality issues. Use a water filter pitcher or faucet-mounted filter to eliminate minerals and pollutants that impair coffee flavor and machine life.

Regular Descale

Normal descaling is necessary regardless of water type. Descaling removes gradually accumulated mineral deposits. Follow the manufacturer’s descaling solution and process instructions. In hard water locations, do this every 2–3 months; see your machine’s handbook.

Regular Cleaning

Clean your coffee machine’s water tank, spouts, and other parts regularly. Cleaning prevents machine residues and mineral deposits. This is essential to maintaining your coffee machine.

Although tap water is safe, filtered or distilled water might help you prevent hard water concerns. Choose based on water quality and preferences.

Can I Descal My Delonghi Coffee Machine without the Manufacturer’s Solution?

Commercial descaling solutions may be used in DeLonghi coffee machines instead of the manufacturer’s suggested solution, however, there are several concerns:

Advice from Manufacturers

First and foremost, follow your DeLonghi coffee machine’s user handbook. The manufacturer’s instructions usually include a descaling solution and process for your machine model. Deviating from these guidelines may compromise the warranty or machine functionality.


Commercial descaling products should be indicated as compatible with coffee or espresso equipment. Generic descalers may not work for food and beverage appliances that utilize water.

Security Measures

Some commercial descalers include harsh chemicals. Please follow the manufacturer’s safety guidelines before handling them. Rinse your coffee maker well after descaling to remove any remaining solution. Remainders may ruin coffee and damage the machine.


Commercial descaling solutions vary in efficacy. Some products effectively remove mineral deposits, whereas others need numerous applications. Choose a product that matches your machine’s mineral accumulation.


After descaling, rinse your coffee maker with clean water to eliminate any residue. Preventing machine residues requires proper washing.

If you use a commercial descaler, do:

  • Carefully read and follow product instructions and safety requirements.
  • Check coffee machine compatibility.
  • Carefully rinse to eliminate residues during descaling.
  • Record your descaling maintenance to measure frequency and machine health.

Commercial descaling products may replace the manufacturer’s remedy, but they must be used carefully. To keep your DeLonghi coffee maker running smoothly, follow the manufacturer’s instructions and handle descaling products carefully.

Should I Descale My Delonghi Coffee Machine Often? What If I Don’t?

Your local water hardness determines how often you must descal your DeLonghi coffee maker. A more complete explanation:

Descale Frequency

In hard water locations with high mineral content (calcium and magnesium), descale your DeLonghi coffee machine every 2–3 months. Soft water may allow descaling every six months.

Various models have various descaling needs, so check your machine’s user manual.

Neglecting Descaling Effects

Neglecting descaling might affect your machine’s operation and coffee quality:

  • Mineral Buildup: Hard water deposits build up in your coffee machine’s heating elements, pipelines, and boiler. The buildup may lower machine efficiency.
  • Clogged Parts: Coffee spouts, water reservoirs, and filters may get clogged with mineral deposits. Reduced water flow lowers coffee quality and brewing efficiency.
  • Bitter Taste: As mineral deposits grow, coffee flavor might change. Water’s interaction with these minerals may make coffee taste harsh or metallic, reducing its enjoyment.
  • Shorter Life: Avoiding descaling will affect your coffee machine’s lifetime. Mineral accumulation may cause machine component wear and malfunctions, requiring extra maintenance.

Overall, descaling is essential for DeLonghi coffee machine maintenance. Mineral accumulation, blocked components, bitter coffee, and shortened machine lifespan might result from neglecting basic maintenance.


A DeLonghi coffee maker not pumping water might be frustrating, but there are usually straightforward fixes. Basic maintenance including water tank cleaning, descaling, and periodic cleaning may avoid numerous problems. Simply running the machine without coffee may remove an airlock. If difficulties continue, DeLonghi’s support or authorized service facilities may assist. Your DeLonghi coffee maker will continue to produce the ideal cup, making each sip enjoyable with appropriate maintenance. Happy brewing!

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Hi, I'm Zein, and I know everything there is to know about home tools. I'm able to fix everything from coffee and espresso machines to washers and dryers. I really enjoy figuring out how to use home electronics, so I'm going to share some guides, tips, and tricks with you. You can count on me to make your home life easy, whether you're looking for the right brew or dealing with annoying problems. Welcome to my space, where I combine my knowledge with simple life hacks!

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