Descaling & Maintenance
How often should I descale my Jura machine?
Scale builds up inside every coffee machine and eventually blocks the boiler and pipes. Run a full descaling cycle with Jura's approved descalant every 2-3 months (or whenever the machine prompts it), then rinse with fresh water. If your machine refuses to descale, see our not heating guide.
Jura descale stuck on 'agent in tank' — what now?
Scale builds up inside every coffee machine and eventually blocks the boiler and pipes. Run a full descaling cycle with Jura's approved descalant every 2-3 months (or whenever the machine prompts it), then rinse with fresh water. If your machine refuses to descale, see our not heating guide.
Error Codes
Jura E6 error 2 — how to reset it
Error codes on Jura machines usually point to a specific condition: a full drip tray, an empty water tank, a stuck brew unit, or scale buildup. The most common codes are listed in our error code flashing guide — most are cleared by a power reset or a descaling cycle.
Power & Startup
Jura E4 not working — common problems
When a Jura machine won't turn on, check the outlet, the power cord, and the switch first. Unplug it for 60 seconds and retry — this clears most temporary control-board faults. If it stays dead, the thermal fuse or power supply may need replacing; see our not turning on guide.
Coffee Quality
Jura D6 problems: weak coffee and slow flow
Weak or watery coffee from a Jura machine is almost always grind, dose, or extraction time: grind finer, use a correct dose, and make sure the brew lasts 20-30 seconds. Scale can also slow extraction — descale if the flow looks thin. See our coffee too weak guide.
Milk Frothing & Steam
Jura machine not frothing milk
Weak or missing froth on a Jura usually means a dirty steam wand, wet steam, or milk that is too warm. Purge the wand, clean the nozzle air hole, and use cold whole milk with the tip just below the surface. More in our no froth guide.
Grinder Problems
Jura grinder not working or jammed
A Jura grinder that stops usually has beans jammed in the burrs, an empty-hopper sensor triggered, or worn burrs. Empty and brush the hopper, run a few dry beans through, and never force the motor. Detailed steps in our grinder not working guide.
Water Leaks
Jura leaking from the bottom
Water leaking from a Jura machine is usually a loose hose, a worn seal, or a drip tray that is not seated correctly. Dry the machine and trace where the water appears during a brew cycle — most leaks are repairable without a service visit. Full steps in our leaking water guide.