ECM Synchronika: Machine Leaking
by Whole Latte Love
8 min read
Updated: April 11, 2025
Learn what to do when an ECM Synchronika espresso machine is leaking from the portafilter, steam wand, the boiler, and/or from the bottom of the machine.
Is coffee coming up and over the portafilter?
Replace the group gasket.For the average home user, the group gasket should be replaced about every six months to a year. When the group gasket is worn out, it becomes hard, and no longer creates a good seal between the portafilter and the group head, so you may begin to notice some leaking. When a group gasket is really old, it can be extremely difficult to remove from the machine, so even if you don't experience any leaking, replacing the group gasket on a yearly basis is a good idea. The document attached at the end of this article titled "Replacing The Group Gasket On Your E61 Machine" shows how to replace the group gasket and shower screen. You don't have to replace the screen once a year, as typically it can simply be cleaned.
Is the leak coming from the lever arm of the machine?
There are 2 O-rings in the lever of the machine. One or both of them may have blown out. You can take apart the lever, and check to see if they are worn. If they seem to be okay, you can lubricate them and see if that resolves the leak. If they are destroyed, they are also easy to replace and very cheap.
Is it steaming from above the machine through the vents on top?
The vacuum breaker is connected to a hose that goes into a plastic “T” connector that attaches to the front discharge of the machine. With age and being subjected to varying heat, this “T” connector can become brittle and break. If that happens, then you will be able to see steam coming out of the top of the machine, as the vacuum breaker is closing, or if it is stuck open. If this is the case, the “T” connector will need to be replaced. If the vacuum breaker will not seal, move to the next section.
Take apart the vacuum breaker and inspect the components, clean all components and remove any buildup or small pieces of debris. Make sure the small O-ring is not broken or too dried out.
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