Why does steam mixed with water come out of my LAVAZZA LB 4712 Coffee Maker pipes?
If steam mixed with water is coming out of the pipes of your LAVAZZA Coffee Maker, the boiler level is likely too high. Check the level probe for correct position and the presence of any surface lime scale.
Why are all the LEDs on my LAVAZZA LB 4712 keyboard flashing?
If all the LEDs on your LAVAZZA Coffee Maker keyboard are flashing, it could be due to several reasons. The automatic filling of water might have stopped after a few minutes, activating the time-out device; turn the machine off and then back on. Check if there is water in the mains and open the water mains tap if necessary. Ensure the automatic level valve is open. Some of the pipes in the circuit might be clogged; check and replace any defective pipes. The probe and/or the earth might be disconnected; check and restore the connections.
How to fix LAVAZZA Coffee Maker with no electrical power?
If your LAVAZZA Coffee Maker has no electrical power, there are several possible causes. First, ensure the selector switch is in the “2” position. If that's not the issue, the on/off switch might be damaged and need replacement. Also, verify that the network switch is in the ON position. Finally, check for any defects in the electrical network connection.
Why is there no steam coming from my LAVAZZA LB 4712 pipes?
If no steam is coming from the pipes of your LAVAZZA Coffee Maker, consider these possibilities: The electrical heating element might be defective and require replacement. The pressure switch contacts could be oxidized, needing cleaning or replacement. The heating element protection thermostat may have tripped and needs resetting. A clogged pipe nozzle could also be the culprit, so try cleaning it. Lastly, ensure the on/off switch is set to the “2” position.
What to do if my LAVAZZA LB 4712 Coffee Maker does not dispense coffee?
If your LAVAZZA Coffee Maker isn't dispensing, start by checking that there is water in the mains. If water is available, the solenoid valve of the brewing unit might be defective and require replacement. Alternatively, the pump could be jammed, necessitating its replacement. Also, inspect the control unit fuse; if it's burnt out, replace it. Other potential issues include a clogged injector or a jammed flowmeter, both of which may need cleaning or replacement. Finally, a brewing unit solenoid valve that is clogged or dirty can also cause this problem; clean or replace it as needed.
Why is my LAVAZZA LB 4712 Coffee Maker cup dirty with splashed coffee?
If your LAVAZZA Coffee Maker cup is dirty with splashed coffee, it could be due to steam pockets during brewing; reduce the water temperature. Air pockets in the hydraulic circuit can also cause this; tighten any loose fittings or connectors. The flow reducer of the brewing unit might be unsuitable; replace the flow reducer.
Why is the pump on my LAVAZZA LB 4712 Coffee Maker so noisy?
If the pump on your LAVAZZA Coffee Maker is noisy, the pump and the motor might not be aligned; install the pump-motor joint. The gasket or the o-Ring of the pressure adjusting screw or the filter could be defective; replace the gasket and the o-Ring, taking care not to change the calibration of the valve. The joint, the coupling screw, or the V-shaped clamp might be loose; align and tighten the components which are loose. The inlet might be clogged, even partially; clean the filter-holder. The hex nut of the pressure adjusting screw or the filter might be loose; tighten the hex connection of the pressure adjusting screw and the filter.
Why is coffee only dispensed with the manual key on my LAVAZZA LB 4712?
If coffee is only dispensed with the manual key on your LAVAZZA Coffee Maker, the fuse of the control unit may be damaged. Replace the fuse of the control unit (1a). Alternatively, the keyboard may be defective; replace the keyboard.
What should I do if the pressure gauge on my LAVAZZA Coffee Maker indicates an unacceptable pressure?
If the pressure gauge on your LAVAZZA Coffee Maker indicates an unacceptable pressure, the pressure gauge itself might be defective and need replacement. Alternatively, the boiler calibration could be incorrect, requiring adjustment. Also, the power-pump calibration might be incorrect and need adjustment.
What causes too much water in the LAVAZZA Coffee Maker boiler?
If there is too much water in the boiler of your LAVAZZA Coffee Maker, the solenoid valve of the automatic level device might be damaged and need replacement. Alternatively, the heat exchanger could be perforated, requiring replacement. Another possibility is that the solenoid valve of the automatic level device remains connected; in this case, check the level probe, the earth of the frame, and the operation of the electronic control unit.
Details manual structure, scope, content, messages used, users, and preservation guidelines.
Defines the qualifications and experience required for machine operators and maintenance personnel.
Details electrical, capacity, and pressure parameters.
Lists and identifies external parts of the machine with corresponding numbers.
Lists and identifies internal parts of the machine with corresponding numbers.
Details safety features like thermal protector, thermostat, and anti-flooding device.
Illustrates risks if safety rules are not followed, including electrical and steam hazards.
Guidelines for safe handling and transport, emphasizing vertical position and care.
Provides instructions for environmentally friendly disposal of the appliance as WEEE.
Instructions for unpacking the machine and checking equipment.
Guidelines for placing the machine for ergonomic use and proper ventilation.
Overview of machine configuration and programming by technical staff.
Procedure for immersing the autosteamer in milk for heating.
Procedure for heating and frothing milk using the autosteamer.
Wiring diagrams for connecting the machine to different electrical power supplies.
Routine checks to be performed weekly, quarterly, and annually on the machine.
Procedures for maintenance tasks like brewing unit component replacement and cleaning.
Lists common machine problems, their causes, and recommended solutions.
General| Type | Capsule Coffee Machine |
|---|---|
| Brand | Lavazza |
| Model | LB 4712 |
| Compatible Capsules | Lavazza Blue Capsules |
| Pressure | 15 bar |
| Color Options | Black |
| Programmable Options | Yes |
| Cup Warmer | Yes |
| Removable Drip Tray | Yes |
| Auto-Off Function | Yes |
| Used Capsules Container | Yes |
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