That model had a likelihood of the electrovalve growing a green crystal inside the fitting where the teflon tube comes from the boiler. The electrovalve is a solenoid operated tap on the steam wand side accessed by removing the lid and the side cover. I used to take the electrovalve off completely to do the job. To get the teflon tube out you depress the silver collar around the tube towards the fitting and pull on the tube. It won't come out unless you depress the collar. You then unscrew that same fitting and clear the green crystal out with a probe or screwdriver and rinse or blow the fitting out. The fitting was sealed from new into the electrovalve with some sort of sealant product, I used to clean out the threads and use some thread tape, I never had a leak and did heaps of them over the years.
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That model had a likelihood of the electrovalve growing a green crystal inside the fitting where the teflon tube comes from the boiler. The electrovalve is a solenoid operated tap on the steam wand side accessed by removing the lid and the side cover. I used to take the electrovalve off completely to do the job. To get the teflon tube out you depress the silver collar around the tube towards the fitting and pull on the tube. It won't come out unless you depress the collar. You then unscrew that same fitting and clear the green crystal out with a probe or screwdriver and rinse or blow the fitting out. The fitting was sealed from new into the electrovalve with some sort of sealant product, I used to clean out the threads and use some thread tape, I never had a leak and did heaps of them over the years.