no-flow
Troubleshooting
No water flow / weak shot on the Bomann® Kühlschrank
Source: Reddit r/espresso — coffee machine troubleshooting
Confidence: 60%
Verified Aug 9, 2026
The machine does not pump water or pulls a weak shot, often from a clogged line or limescale.
How to fix No water flow / weak shot
Prime the pump
Run a water-only cycle to purge air from the system. If no water flows, check the water line for kinks.
Source: Reddit r/espresso — coffee machine troubleshooting
Confidence: 60%
Verified Aug 9, 2026
Clean the group head
Remove and clean the group head and portafilter to clear clogs.
Source: Reddit r/espresso — coffee machine troubleshooting
Confidence: 60%
Verified Aug 9, 2026
Parts needed: Bomann® Kühlschrank Group Head Gasket, Bomann® Kühlschrank Portafilter
Replacement parts for the Bomann® Kühlschrank
Bomann® Kühlschrank Water Filter
Bomann® Kühlschrank Descaling Solution
Bomann® Kühlschrank Group Head Gasket
Bomann® Kühlschrank Portafilter
Bomann® Kühlschrank Filter Basket
Bomann® Kühlschrank Steam Wand Tip
Bomann® Kühlschrank Grinder Burrs
Bomann® Kühlschrank Cleaning Tablets
← All Bomann® Kühlschrank error codes
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