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ashleynixonAug 16, 2025
Why is my Graef Coffee Maker making a very loud pumping noise?
- RRachel AllenAug 16, 2025
A very loud pumping noise from your Graef Coffee Maker can occur if there's no water in the water tank, so fill the water tank. It may also happen if the water tank isn't correctly inserted, so ensure it is properly placed. Finally, the noise might be due to the unit being calcified, in which case you should decalcify it.











