VERIFIED MODEL GUIDE · Fully automatic bean-to-cup espresso with dual grinders and milk system
JURA J10 twin Diamond Onyx NAA 15724
troubleshooting guide
Troubleshoot exact JURA J10 twin NAA 15724 display messages, slow coffee, milk frother performance, and heating errors.
MODEL-SPECIFIC QUICK ANSWER
JURA J10 twin Diamond Onyx NAA 15724 common problems and fixes
The J10 twin displays prompts rather than blinking fault-light codes. Fill the water tank, empty the grounds container and drip tray, and fit the tray when prompted. For coffee that drips, use a coarser grind; for weak or spraying milk foam, clean and rinse the fine foam frother. JURA says ERROR 2 or ERROR 5 after long cold exposure can clear after warming the machine to room temperature.
WHAT'S HAPPENING?
Choose the closest match.
Start with the pattern or symptom you can see. If it isn't listed, use the official support link below.
Something else or unclear?We will not guess at a pattern we have not verified.
Open official supportDIAGNOSTIC CHECK
One quick question.
✓ YOUR NEXT STEP
Try this
CHECK THE MODEL
Is this the exact model on your machine?
Model-specific instructions can differ. Check the name or code on the product label before continuing.
A NOTE ON THIS GUIDE
Good advice starts with the right manual.
The manufacturer does not document coded fault-light sequences for JURA J10 twin Diamond Onyx NAA 15724. Choose a documented brewing, water-flow, heating, pressure, or maintenance symptom below. Any status indicator shown here appears only when the manufacturer assigns it a specific meaning.
Every troubleshooting path links to manufacturer guidance.
What “verified” means: Each listed signal or symptom is tied to a linked manufacturer source. This is guidance, not a diagnosis of an internal fault.
Coverage: JURA product page confirms the J10 twin Diamond Onyx NAA article number 15724; the NAA manual explicitly names J10 twin and documents its display messages, troubleshooting, and maintenance.
Independent guide, no risky repairs. This site is not affiliated with or endorsed by any manufacturer. Product and machine names are trademarks of their respective owners. If a symptom is unclear or persists, contact qualified support.