9 Troubleshooting
The Robot is so simple and should give you plenty of trouble free coffee shots, if it is
set-up and being used correctly.
This guide applies to all Robots, however text in blue is specific to the
pressure gauge kit Robots.
The following are completely normal:
• The arms do not stay up – this is done on purpose for
safety. Always have one hand holding the arms up
• The portafilter seems loose in the body – this is correct
• There is water in the clear tube up to the gauge! - this is
correct, the tube will fill with water when in use
• Some of the fasteners seems loose – after shipping or some
use you may need to tighten the base screws or the top pin
1. Water leaks from the top of the portafilter when I try and brew.
• Basket has been overfilled with water. Leave around 5-8mm gap
• Silicone seal is not fitted correctly – ensure it looks even, run your
thumb and forefinger around a few times to seat it
• Silicone seal could do with some Dow 111
• Silicone seal may need replacement (unlikely)
• Letting the arms fall down or not enough pre infusion pressure. The
seal needs to flare out to form a seal
• Pressing down on one lever, use even pressure on both levers
2. Coffee seems weak and watery (e.g. shot times <15 seconds)
• Adjust the grind finer
• Increase the coffee dose – use a minimum of 10g
• Stale coffee – use fresher coffee
• Using pre-ground coffee in a professional basket – use the Pressurised
basket for pre-ground coffee
• Water is not hot enough, pour boiling water straight from the kettle
• Not enough pressure – use greater force on the levers
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