Why is my machine making weird noises?
Firstly, there is a range of “normal” noises for Italian coffee machines including squeaks, hums and rattles. Even when comparing brand new machines there is a range of sounds that can be considered as “normal.” As Italian coffee machines are made by hand, not my robots, every machine is a just little different.
Over time its normal for sounds (squeaks, hums and rattles) to change and to come and go. When it comes to new sounds I’m occasionally asked about new loud squeaks. Squeaking noises on coffee machines with E61 groups are often a sign that the E61 group needs a little more lubrication.
If you are handy and willing take a look on YouTube. You will find plenty of step-by-step videos that show you how to disassemble and re-lubricate your espresso machine’s E61 group. All you will need are some basic tools and some food safe grease. If you don’t want to get your hands dirty take it to a local Italian coffee machine technician for a quick, basic service. It won’t cost much.
Why does this sometimes happen earlier than expected? A simple reason. Too much back flushing with back flush detergent. Back flush detergent dissolves not only coffee oils, it also dissolves the good lubricating grease in the E61 group. For tips on how to maintain your machine without over-maintaining see my Italian coffee machine Maintenance Guide