Lelit
Lelit Coffee Makers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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AL1
Machine displays AL1 and stops heating; coffee is cold or only lukewarm.
Brew Boiler Temperature Sensor Fault
AL10
Machine displays AL10; communication or configuration error; machine may not respond to controls.
Control Board / Firmware Communication Fault
AL2
Machine displays AL2 and steam function is disabled; steam boiler does not heat.
Steam Boiler Temperature Sensor Fault
AL3
Machine shows AL3 and shuts down heating; may have overheated or run dry.
Brew Boiler Overtemperature / Safety Cutout
AL4
Machine displays AL4 and stops heating steam; steam boiler may have overheated or run dry.
Steam Boiler Overtemperature / Safety Cutout
AL5
Machine shows AL5 and pump does not run; no water is drawn from tank or mains.
Pump Circuit Fault / Pump Overload
AL6
Machine displays AL6; water level alarm; machine may not heat or may stop mid-cycle.
Water Tank / Reservoir Level Detection Fault
AL7
Machine shows AL7; auto-fill does not work correctly; steam boiler may not fill or may overfill.
Steam Boiler Level Probe / Autofill Fault
AL8
Machine displays AL8; group head temperature unstable or not reaching setpoint.
Group Head Temperature Sensor / PID Feedback Fault
AL9
Machine shows AL9; internal temperature too high; machine may shut down or disable heating.
Internal Overtemperature / Cabinet Overheat
Symptom
Backflush water does not flow to drip tray; pressure builds but no discharge when brew stops.
Three-Way Valve Not Venting
Symptom
Brew pressure too high; gauge spikes above 12 bar and shots are very slow or bitter.
Excessive Brew Pressure
Symptom
Brew pressure too low; gauge shows less than 8 bar during extraction.
Low Brew Pressure
Symptom
Brew water temperature seems inconsistent; shots sometimes sour, sometimes bitter with same settings.
Unstable Brew Temperature Control
Symptom
Display or indicator lights flicker, go blank intermittently, or show garbled characters.
Display Power / Communication Issue
Symptom
Drip tray fills very quickly even with little brewing; lots of water returns to tray.
Excessive Discharge to Drip Tray
Symptom
Group head leaks around the portafilter during extraction.
Worn Group Gasket / Misfit Portafilter
Symptom
Group head or boiler exterior shows signs of rust or corrosion.
External Corrosion / Finish Degradation
Symptom
Hot water tap drips or flows even when closed.
Hot Water Valve Not Sealing
Symptom
Machine does not enter steam mode or switch between coffee and steam modes.
Mode Selection / Steam Switch Fault
Symptom
Machine does not start a brew cycle when the brew button is pressed.
Brew Switch / Control Input Failure
Symptom
Machine powers on but does not heat; no hot water or steam.
Heating Circuit Failure
Symptom
Machine takes very long to heat up; boilers reach temperature slowly.
Reduced Heating Performance
Symptom
Machine trips the household breaker or RCD when turned on or when heating.
Electrical Short or Ground Fault
Symptom
Machine vibrates excessively on the countertop during brewing.
Chassis Vibration / Footing Issue
Symptom
No power at all; machine does not turn on, no lights or display.
Main Power Input Failure
Symptom
No steam pressure; steam wand only emits water or very weak steam.
Steam Boiler Not Reaching Pressure
Symptom
Portafilter is difficult to lock in or cannot reach normal locking position on new gasket.
Incorrect Group Gasket Fitment
Symptom
Pump is very loud or vibrates excessively during operation.
Pump Mounting / Cavitation Issue
Symptom
Pump runs but no water comes from group head; loud buzzing from pump.
Water Intake Blockage or Airlock
Symptom
Safety valve on top of boiler occasionally spits water or steam.
Boiler Safety Valve Activation
Symptom
Steam pressure too high; safety valve hisses or releases steam frequently.
Steam Pressure Control Failure
Symptom
Steam wand drips water or steam constantly even when the knob is fully closed.
Steam Valve Not Sealing
Symptom
Water dripping continuously from the group head even when not brewing.
Brew Valve / Group Solenoid Not Sealing
Symptom
Water leaking from under the machine during or after brewing.
Internal Leak in Brew or Fill Circuit
Symptom
Water or steam leaks from the top of the boiler around fittings.
Boiler Fitting or Gasket Leak
Symptom
Water tastes metallic, bitter, or has a strong off-flavor.
Contaminated Hydraulic Circuit
Symptom
Weak coffee flow; shots are slow or choke the machine even with coarse grind.
Brew Circuit Restriction
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| AL1 |
Machine displays AL1 and stops heating; coffee is cold or only lukewarm.
|
Brew Boiler Temperature Sensor Fault | View Details |
| AL10 |
Machine displays AL10; communication or configuration error; machine may not respond to controls.
|
Control Board / Firmware Communication Fault | View Details |
| AL2 |
Machine displays AL2 and steam function is disabled; steam boiler does not heat.
|
Steam Boiler Temperature Sensor Fault | View Details |
| AL3 |
Machine shows AL3 and shuts down heating; may have overheated or run dry.
|
Brew Boiler Overtemperature / Safety Cutout | View Details |
| AL4 |
Machine displays AL4 and stops heating steam; steam boiler may have overheated or run dry.
|
Steam Boiler Overtemperature / Safety Cutout | View Details |
| AL5 |
Machine shows AL5 and pump does not run; no water is drawn from tank or mains.
|
Pump Circuit Fault / Pump Overload | View Details |
| AL6 |
Machine displays AL6; water level alarm; machine may not heat or may stop mid-cycle.
|
Water Tank / Reservoir Level Detection Fault | View Details |
| AL7 |
Machine shows AL7; auto-fill does not work correctly; steam boiler may not fill or may overfill.
|
Steam Boiler Level Probe / Autofill Fault | View Details |
| AL8 |
Machine displays AL8; group head temperature unstable or not reaching setpoint.
|
Group Head Temperature Sensor / PID Feedback Fault | View Details |
| AL9 |
Machine shows AL9; internal temperature too high; machine may shut down or disable heating.
|
Internal Overtemperature / Cabinet Overheat | View Details |
| – |
Backflush water does not flow to drip tray; pressure builds but no discharge when brew stops.
|
Three-Way Valve Not Venting | View Details |
| – |
Brew pressure too high; gauge spikes above 12 bar and shots are very slow or bitter.
|
Excessive Brew Pressure | View Details |
| – |
Brew pressure too low; gauge shows less than 8 bar during extraction.
|
Low Brew Pressure | View Details |
| – |
Brew water temperature seems inconsistent; shots sometimes sour, sometimes bitter with same settings.
|
Unstable Brew Temperature Control | View Details |
| – |
Display or indicator lights flicker, go blank intermittently, or show garbled characters.
|
Display Power / Communication Issue | View Details |
| – |
Drip tray fills very quickly even with little brewing; lots of water returns to tray.
|
Excessive Discharge to Drip Tray | View Details |
| – |
Group head leaks around the portafilter during extraction.
|
Worn Group Gasket / Misfit Portafilter | View Details |
| – |
Group head or boiler exterior shows signs of rust or corrosion.
|
External Corrosion / Finish Degradation | View Details |
| – |
Hot water tap drips or flows even when closed.
|
Hot Water Valve Not Sealing | View Details |
| – |
Machine does not enter steam mode or switch between coffee and steam modes.
|
Mode Selection / Steam Switch Fault | View Details |
| – |
Machine does not start a brew cycle when the brew button is pressed.
|
Brew Switch / Control Input Failure | View Details |
| – |
Machine powers on but does not heat; no hot water or steam.
|
Heating Circuit Failure | View Details |
| – |
Machine takes very long to heat up; boilers reach temperature slowly.
|
Reduced Heating Performance | View Details |
| – |
Machine trips the household breaker or RCD when turned on or when heating.
|
Electrical Short or Ground Fault | View Details |
| – |
Machine vibrates excessively on the countertop during brewing.
|
Chassis Vibration / Footing Issue | View Details |
| – |
No power at all; machine does not turn on, no lights or display.
|
Main Power Input Failure | View Details |
| – |
No steam pressure; steam wand only emits water or very weak steam.
|
Steam Boiler Not Reaching Pressure | View Details |
| – |
Portafilter is difficult to lock in or cannot reach normal locking position on new gasket.
|
Incorrect Group Gasket Fitment | View Details |
| – |
Pump is very loud or vibrates excessively during operation.
|
Pump Mounting / Cavitation Issue | View Details |
| – |
Pump runs but no water comes from group head; loud buzzing from pump.
|
Water Intake Blockage or Airlock | View Details |
| – |
Safety valve on top of boiler occasionally spits water or steam.
|
Boiler Safety Valve Activation | View Details |
| – |
Steam pressure too high; safety valve hisses or releases steam frequently.
|
Steam Pressure Control Failure | View Details |
| – |
Steam wand drips water or steam constantly even when the knob is fully closed.
|
Steam Valve Not Sealing | View Details |
| – |
Water dripping continuously from the group head even when not brewing.
|
Brew Valve / Group Solenoid Not Sealing | View Details |
| – |
Water leaking from under the machine during or after brewing.
|
Internal Leak in Brew or Fill Circuit | View Details |
| – |
Water or steam leaks from the top of the boiler around fittings.
|
Boiler Fitting or Gasket Leak | View Details |
| – |
Water tastes metallic, bitter, or has a strong off-flavor.
|
Contaminated Hydraulic Circuit | View Details |
| – |
Weak coffee flow; shots are slow or choke the machine even with coarse grind.
|
Brew Circuit Restriction | View Details |
No matching codes found
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