Contact Us FREE 2-DAY DELIVERY FOR ORDERS TOTALING $99 OR MORE! VETERAN OWNED Sign In My Account JP Search our store. Submit Search Replacement Parts Shop Jura Parts By Model Jura Spare Parts Catalog Jura Part Request Cleaning Products Accessories Drinkware Frothers Repair Services Brew Group Repair Service Jura Coffee Machine Repair Service Jura Coffee Machine Appraisal Service Troubleshooting Jura Error Codes Jura Part Diagrams Jura Parts Glossary Jura Quick Tips & Fixes Jura User Manuals Jura Water Circuit Diagrams Jura Wiring Diagrams DIY Repair Videos How To Open Machine How To Refurbish Brew Group How To Remove Brew Group How To Remove Coffee Spouts How To Replace Grinder Burrs How To Replace Membrane Regulator Receiving an Error? Nav Menu 3 Help Desk Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 Home > Troubleshooting > Jura Error Codes > Jura GIGA Error 12 Jura GIGA Error 12 The Left Grinder Failed to Activate GENERATION 2 Models - The HALL Sensor on Right Grinder Failed Possible Faulty Parts: Fix: The left grinder failed to activate. The motor has seized or cannot activate due to the burrs being impeded by a foreign object, most often a stone. Visually inspect the grinder for blockages and foreign objects. If the grinder is clear, the grinder may need to be replaced. The HALL sensor on the right grinder failed to send the correct impulses to activate the grinder. Replace the right HALL sensor on the grinder. The Power Board is defective. The board is failing to receive the necessary signal to activate the grinder. Replace the PCB; however, sometimes it is more economical to buy a new or refurbished machine. Sort By: Price: Low to High Price: High to Low Most Popular Title Manufacturer Newest Oldest Availability 30 per page 60 per page 120 per page 180 per page 300 per page Page of 1 Jura Oval Head Tool - How to Open Jura Coffee Machine Usually Ships in 24 Hours PRICE: $14.99 SALE: $11.99 In Stock Jura GIGA-X-WE Professional Cleaning Products Kit Usually Ships in 24 Hours PRICE: $184.99 SALE: $179.99 In Stock Jura GIGA 5-6-X3-X7-X8-X9 Grinder - Left Side Usually Ships in 24 Hours PRICE: $499.99 In Stock Back to top