Jura Capresso Impressa S9-
All functions are working except steam, pump comes on for a second and then cycles on and off. No steam or siphon. Any ideas?
I had a similar problem. I took off the side and rear cover, followed the hose that comes from the steam wand to the rear of hte unit. It enters a solenoid made by ACL Italy. I dismantled the solenoid unit by disconnecting the two hose ends, removing the relay, and unscrewing the plunger unit (vertical pipe). The plunger unit internals should move freely up and down like a piston in a cylinder , powered by a small spring. In my unit, this plunger was calcified and seized. I soaked it in boiling water and pressed on it gently several times and it unstuck. I put it all back together again and presto! Good luck
Hi,
Great solution - solved 80% of the problem I had - would also add to check the pressure relief valve (back of pump where water lines to thermo blocks attach). Noticed presure was still low after cleaning solenoid. Ran steam with cover off top (cup warmer plate) and notice water flow in clear line at top (you will see the line). Went to pump, pulled off hose block at back of pump, and popped (carefully) off the black cap which separates the water to the brewer from the steamer. Cleaned this needle and seat, and the spring too, and the pressure now is extremely high at at the steamer wand. 100% fix now.
Same problem here...piston ok but both tubes blocked with greenish "calcium??" gunk. thanks for the help!
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I found my clog in the same area, the piston was OK but the metal tube the clear hose slid onto had calcified. cleared it with a needle and all is well. Thanks
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