How To Fix A Leaking Delonghi Espresso Machine? [2023 GUIDE]

If you own a Delonghi espresso machine, you know how frustrating it can be to wake up in the morning to water all over your floor. Luckily, most leaking Delonghi espresso machines are relatively easy to fix. In this blog post, we’ll walk you through the process of why your Delonghi espresso machine is leaking water. Let’s get started!

What causes an espresso machine to leak?

An espresso machine is a device used for brewing espresso. The process involves forcing heated water at high pressure through finely-ground coffee beans, resulting in a rich, aromatic beverage with different textures.

Espresso coffee image

The parts of an espresso machine include a portafilter, a water tank, a dispenser, and a pump. The dispenser is where the coffee comes out. The portafilter is where you put in the coffee and seal it to the dispenser. The pump takes in water from the water tank and pushes it through the motor and pressure regulator. The pump then sends the pressurized water through the open portafilter and into the dispenser.
The only time an espresso machine will leak is when water gets into the motor. If this happens, it means there’s a problem coming off the motor or the water pump. When this happens, you need to first dismantle your espresso machine and remove any parts that may be causing the leak.

Then, check to see whether there’s a connection or seal where the pump connects to the motor. If everything is put together correctly and your espresso machine still leaks, then it’s most likely a motor issue and you’ll need to purchase a new motor.

How to repair a Delonghi espresso machine leaking water

This can happen due to several reasons.

The gasket may have lost elasticity because of a bad seal. You can check that by seeing how well it is fitting around the group head. If it is loose, the gasket may have to be replaced.

The O-ring seals may have become brittle, worn, or even cracked due to heat.

The steam tube connections may have some dirt in them. This can happen due to improper cleaning.

The portafilter may have cracked or broken the seal. If the portafilter is cracked, it needs to be replaced. The heating element may need to be replaced. The heating element may have become damaged due to wear and tear. Lastly, the water tank may have a crack in the tube. If the tank is cracked, it may be leaking water.

Repairing a delonghi espresso machine leaking water

Here are the steps to follow:

  1. Dismantle your espresso machine: First, you need to disassemble your espresso machine to check why it’s leaking. Once you’ve taken it apart, dry the parts using paper towels.
  2. Clean your espresso machine next, you need to clean all the components. Use a special cleaner for espresso machines and clean all the components.
  3. Check the gaskets and O-rings after cleaning, you need to check whether the gasket and O-rings are properly fitted. Go through the manual and check whether there is any pressure rating for the gaskets and O-rings. If it’s by the book, the gaskets and O-rings should be fine. However, the gaskets and O-rings may have shrunk or dried out. If that is the case, replace them
  4. Check the connections after the gaskets and O-rings are checked, you need to check whether the connections are loose. Go through the manual and check if there are any special instructions for connecting the parts. If you’ve followed the manual correctly, the connections should be fine.
  5. Replace the portafilter if the portafilter is cracked or broken, you need to replace it. However, the portafilter should be replaced only if it has been cracked or broken. If the portafilter is not cracked or broken, it can be reused.

How to prevent an espresso machine from leaking water

If the water shows up in your espresso machine, there are a few things that you can do to prevent it. First, check the bottom of the machine. On the bottom of the machine, there should be a rubber seal. This seal is usually called a weep hole. The weep hole allows water to get through the espresso machine. This hole has the purpose of draining the water that collects in the machine.

If the weep hole is not positioned in the correct area, water can leak out. If the hole is in the wrong place the machine may not work properly. You can fix this by taking the espresso machine apart and taking a tool called a ball peen hammer to the top of the machine.

The top of the machine is held together by six to ten screws. Once you have unscrewed the screws, you can remove the top from the espresso machine. Once you have removed the top, you will be able to see the weep hole. If you see any metal pieces around the hole, you will need to remove them. Then you will insert a new egg washer.

An egg washer is a thin piece of thin rubber, or vinyl, that prevents the leak from happening. The next step is to replace the top. Once you’ve replaced the top, the espresso machine needs to be reassembled. You also need to fill the water tank. The water tank needs to be filled until it is about three-quarters full. The water needs to be allowed to flow out through the weep hole. This will clear the drain.

The steps you should take when fixing a leaking espresso machine

An espresso machine is an essential part of any espresso lover’s kitchen. However, if your espresso machine begins leaking water, you will need to get it fixed as soon as possible to prevent water damage and mold growth. 

The first step to fixing a leaking espresso machine is turning off the machine and removing the base. The drip tray may be removed and cleaned separately. Next, find the water valve and shut off the water. 

After you’ve shut off the water, remove the water tank. This can be easily done by removing the two screws that hold it in place. Drain the water from the tank and remove it. 

The next step in fixing a leaking espresso machine is to check the seals between the water tank and the machine. You will need to replace the seals if they are damaged or worn out. Special tools may be needed to remove the seals. 

The next step is to check the o-rings between the water tank and the water valve. If any of these are damaged, you will need to replace them as well. 

Once you’ve replaced the o-rings and seals, it’s time to put the tank back into the machine. Put the tank back into place and reassemble the machine. After you’ve done this, make sure you reassemble the machine correctly – paying close attention to the directions and making sure that the O-rings are in place. 

Once you’ve reassembled the machine, you are ready for a test run! If the machine still leaks, you may need to repeat the process. You may need to replace the o-rings, seals, or valves. However, in most cases, this won’t be necessary and the coffee maker should now work as it should.

Related Article: Where are Breville Espresso Machines Made?

Common reasons for a leaking Delonghi espresso machine

Your Delonghi espresso machine is designed to make your life easier. However, any machine will deteriorate over time, and timing is everything when it comes to replacing your espresso machine.

Here are some common reasons your espresso machine may be leaking:

  • Your water filter is not sitting properly. Delonghi espresso machines have water filters that need to be changed every 2 to 3 months. To ensure your water filter is working properly, place it in a glass of water and check to make sure it isn’t overflowing. If it is, your filter is not sitting properly and needs to be adjusted.
  • Your carbon filter needs to be cleaned. Delonghi espresso machines use a filter to extract flavors from the espresso. If you haven’t cleaned your filter recently, it may need replacing.
  • Your coffee pod holder is broken. The pod holder in your machine can break over time. If your coffee pod holder is no longer functioning properly, it might need replacing.
  • Your portafilter is clogged. The portafilter can become clogged over time, so it needs to be cleaned regularly. To clean your portafilter, follow the manufacturer’s instructions.
  • Your espresso machine’s pump is clogged. If your espresso machine has a pump, it needs to be cleaned regularly. For instructions on cleaning your pump, refer to your espresso machine’s owner’s manual.
  • Your espresso machine’s boiler is clogged. If your espresso machine has a boiler, it needs to be cleaned regularly. If your boiler is clogged, it won’t be able to heat water properly, leading to water leaking from your espresso machine.
  • Your machine’s valves are leaking. The valves in your espresso machine can become worn over time, leading to leaks. To replace the valves in your machine, refer to your espresso machine’s owner’s manual.
  • Your espresso machine is broken. If your machine is broken, it won’t work properly, leading to leaks. To replace your espresso machine, refer to your espresso machine’s owner’s manual.


In this post, we’ve covered the steps for repairing a leaking Delonghi espresso machine – from troubleshooting to removing the reservoir and cleaning your pump. I hope you found this guide helpful. I personally use this guide whenever I notice a leak in my machine. If you have any questions or would like more advice, please let me know in the comments – I’d love to hear from you!

Frequently Asked Questions

Why is my Delonghi espresso machine leaking water?

If the needle on your Delonghi espresso machine is leaking, it may be clogged or loose. Try cleaning it, but replace it rather than trying to clean it again if it still leaks. Also, make sure that the needle spring is right-side up, and that the needle is aligned with the threads. Some Delonghi espresso machines allow the needle to be removed and cleaned. If not, replace the needle.

Why is water coming out of the bottom of my coffee maker?

There may be clogs in the coffee cone. Loosen the cone’s screw, remove the cone, and clean out the cone and holes. Put a new cone in the coffee maker. If the clog is not in the cone, open the brew basket and inspect the filter. Dirty filters often cause water to leak out the bottom of the brew basket.

What happens if you don t descale your coffee machine?

If you don’t descale your coffee machine, you risk mineral deposits blocking the internal parts of the machine and reducing its cleaning power. These deposits can also cause damage to the machine’s heating element. As a result, your coffee machine will cease functioning.

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