KitchenAid KES6403 Owner's Manual
![KitchenAid KES6403 Espresso Machine manual cover](/images/kSHObAgeJiJffoQewBAAGJWO/thumbs/thumb175x175.webp)
To descale your KitchenAid KES6403 Espresso Machine, fill the water tank with a mixture of water and descaling solution. Run the solution through the machine by brewing it without coffee. Follow up with two full tanks of clean water to rinse.
Ensure the machine is plugged into a working outlet and the power switch is turned on. Check the circuit breaker if necessary. If the problem persists, contact KitchenAid support for assistance.
Burnt-tasting espresso can result from over-extraction. Ensure the grind size is not too fine and avoid over-tamping. Also, check that the water temperature is not too high. Adjust settings accordingly.
After each use, purge the steam wand by letting steam run through it for a few seconds. Wipe the wand with a damp cloth and use a pin to clean any milk residues from the tip holes.
Check if the water reservoir is correctly seated and not overfilled. Inspect the seals and gaskets for wear and tear. If leaks persist, consult KitchenAid support for further diagnostics.
To adjust the grind size, refer to your grinder's manual for specific instructions. Finer grinds increase extraction, while coarser grinds decrease it. Experiment to find the ideal size for your taste preference.
Regular maintenance includes descaling every 2-3 months, cleaning the group head and steam wand after each use, and checking the seals and gaskets periodically. Keeping the machine clean will ensure longevity and optimal performance.
Low pressure can be caused by a clogged filter basket, incorrect grind size, or insufficient tamping. Clean the filter basket and adjust the grind size and tamping pressure to resolve the issue.
To froth milk, start with cold milk and position the steam wand tip just below the surface. Open the steam valve and angle the pitcher to create a whirlpool effect. Once the milk reaches the desired temperature, turn off the steam and tap the pitcher to remove bubbles.
Check that the machine is plugged in and switched on. Ensure the water tank is full and properly positioned. If the machine still doesn't heat up, it may require service by an authorized technician.