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9.1c An insufficient infusion pressure
The infusion pressure is lower than 10 bar
Setting operations are unsuccessful
The pump is faulty
- dirty filter
- coil condenser
- damaged pallets
- broken coupling
- faulty by-pass
- Disassemble and restore the pump to its initial condition
- Reset pressure
9.1d A wrong decompression process
When the infusion process is over, you remove the filter-holder and you notice the
- The temperature is too low
- The infusion time is too short
(A too coarse grind - a too
light dose - a too low pressure)
- The decompression circuit is blocked
Set the pump as indicated on (
The motor-pump is
mechanically blocked
(the thermal safety sys-
tem and the circuit-
breaker protecting the
motor coil)
grounds pancake is wet.
- 18 -
§
)
5.3
The motor-pump is no
longer power-supplied
Check the cable
Check:
- Steam pressure
- Grind
- Ground coffee dose
- Pump pressure
- Spray
- Filter
- Solenoid valve
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