Symptoms
• Machine stops mid-brew cycle and displays E03 on the control panel
• No water flows from the group head or dispenser during coffee preparation
• Weak or no pressure during espresso extraction
• Machine beeps repeatedly when attempting to brew
• Water may leak from the brew unit area
• Machine enters standby mode and requires manual reset to attempt brewing again
• Error message persists even after attempting to brew multiple times
Possible Causes
• Water tank is empty, not properly seated, or has insufficient water level
• Mineral buildup and scale deposits blocking water lines (common in hard water USA regions)
• Air pocket trapped in the water circulation system preventing proper pressure
• Clogged water inlet valve or supply line
• Faulty water pressure sensor malfunction
• Brew unit not correctly inserted or seated in the machine
• Water pump failure or insufficient pump pressure output
• Defective one-way valve in the water system
• Circuit breaker or power surge affecting the 120V/60Hz electrical supply
• Water distribution block or micro-filter blockage
Safety Checks You Can Do
• Verify the home circuit breaker for the outlet is in the ON position and reset it if tripped
• Unplug the machine from the electrical outlet for 60 seconds, then plug it back in to perform a hard reset
• Check that the water tank is filled with fresh, room-temperature water to the maximum fill line
• Remove the water tank and reseat it firmly into the machine until it clicks or locks into place
• Inspect the water tank inlet connection on the machine for any debris or blockage
• If your region has hard water, run the machine's descaling cycle using a USA-compatible descaling solution following the manufacturer's instructions
• Open and close the brew unit door or lever several times to ensure proper seating
• Check the grounds container and drip tray are emptied and properly installed
• Verify the bean hopper contains beans and is not jammed or blocked
• Allow the machine to sit powered on for 2-3 minutes to allow the water system to pressurize naturally
• Attempt to run a test brew cycle with just hot water (no coffee) to see if water flows
• Inspect all visible water connections on the exterior of the machine for loose fittings or moisture
Safety First
Always disconnect the appliance from power before performing any checks. If you are unsure about any step, please contact a qualified technician.