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Troubleshooting
| Troubleshooting Espresso machines |
| PUMP-DRIVEN ESPRESSO MACHINES
PUMP IS ON, BUT NO ESPRESSO APPEARS
- There is no water in the boiler or in the reservoir (prime the pump).
- Confirm water pressure; valves are turned on (plumbed-in machines).
- Coffee is too finely ground, or tamped too firmly or too much coffee in basket.
- Pump or other inner workings may be clogged with calcium deposits (descale).
- Shower screen may be plugged with coffee deposits.
- Machine has been turned off and has not had time to reach proper temperature or pressure. (lever machines only).
PUMP MAKES LOUD NOISE
- No water in reservoir.
- Pump not primed.
- Coffee ground to coarsely.
STEAM POWER DIMINISHED
- Wand is clogged with milk. (Soak the wand nozzle, bleed the wand, clear steam jet holes).
- Machine not completely pre-heated in steam mode.
- Boiler and element scaled up.
ESPRESSO GUSHES OUT; TOO WATERY, LITTLE OR NO CREMA
- Coffee ground too coarse; should form a loose "cake" when pinched between fingers. "Cake" should break, when dropped an inch onto countertop.
- Coffee has not been evenly distributed and tamped firmly in filter.
- Not enough coffee in the portafilter (fill to recommended level, usually 6.5 to 7 grams for single).
- Old coffee beans (more than 14 days); old ground coffee (more than 7 days).
ESPRESSO OOZES OUT SLOWLY, DRIPS; TASTES BURNED OR BAKED
- Coffee has been ground too finely (cakes too easily - does not break when dropped an inch onto counter) and/or tamped too firmly.
- Use a coarser grind, ease up on tamping, use less coffee.
- Group screen plugged (clean or replace).
- Poor pump pressure or pump worn out.
PORTAFILTER POPS OUT OF THE GROUP WHEN EXTRACTING
- Too much coffee in the portafilter. Keep coffee amount a couple of millimeters below the basket rim after packing
- Portafilter handle has not been properly secured in the group.
- Coffee has been ground too fine.
WATER LEAKS FROM THE PORTAFILTER OR GROUP
- The rubber group gasket is worn and needs to be replaced.
- Coffee grounds are causing a poor seal around the portafilter gasket. (Clean portafilter rim clean).
- Coffee has been ground too fine
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