If the Oracle Jet is not dispensing coffee or the water flow appears restricted, start by checking the water tank. Ensure it contains sufficient fresh water and is correctly seated. Check the water filter's condition and replacement schedule. If the machine displays a water-related warning, follow the touchscreen instructions before attempting another extraction.

The Oracle Jet can identify espresso shots that extract too quickly or too slowly and provide grind adjustment guidance. If coffee tastes weak, sour or bitter, check the extraction feedback before changing several settings at once. Make small grind adjustments and test another shot using the same coffee beans.

Coffee oils and fine particles can accumulate around the burrs and grind outlet, affecting dose consistency. If grinding becomes noisy, irregular or stops delivering coffee, inspect the bean hopper and accessible grinder components for obstructions. Switch off and unplug the machine before removing components for manual cleaning. Never introduce water into the grinding mechanism.

The Oracle Jet's automatic milk system relies on clear steam-tip openings to produce consistent microfoam. Wipe the steam wand after every milk preparation and allow its automatic purge to complete. If milk texture deteriorates or steam output weakens, open the steam wand cleaning programme through the machine's maintenance settings.

Coffee oils gradually accumulate around the shower screen and group head. The Oracle Jet provides a dedicated cleaning programme that backflushes the coffee system. Run this programme when prompted, using the appropriate espresso cleaning product and following the touchscreen instructions. Coffee cleaning and descaling are separate maintenance procedures.

Mineral deposits can restrict water flow and reduce heating efficiency. The Oracle Jet includes a guided descaling programme and water hardness settings to support maintenance. Use a suitable descaling product and complete the full programme, including rinsing. Never interrupt the process by disconnecting the power.