Coffee Machine Diagnostics

Bosch Coffee Machine
Error Codes

Meanings, severity levels, safe checks you can perform, and when to call a technician.

Enter the code shown on your coffee machine display

Is it safe to keep using it?

Depends on code severity. Low/Medium codes often allow continued use, High severity requires immediate stop.

Can error codes be reset?

Some codes clear after power cycle. Persistent codes indicate underlying issues needing repair.

When should I stop using it?

Stop immediately for water leak codes, burning smell, or any High severity error.

Most Common Codes

EMPTY DRIP TRAY FILL BEANS CALC ERROR 7 ERROR 8 ERROR 5 ERROR 6 ERROR 3 ERROR 2 ERROR 1

All Codes

CALC EMPTY DRIP TRAY ERROR 1 ERROR 2 ERROR 3 ERROR 5 ERROR 6 ERROR 7 ERROR 8 FILL BEANS

Error Code Directory

Click any code for detailed troubleshooting steps

Low Medium High

Code Meaning Severity Common Symptom

CALC Descaling Required Low The descaling indicator appears on the display or a dedicated light turns on. View EMPTY DRIP TRAY Drip Tray Full Low Water or coffee begins to leak from the front bottom of the machine. View ERROR 1 Water System Pressure Medium The pump whirs and the cycle starts, but little or no coffee comes out of the spout. View ERROR 2 Temperature Problem Medium The brewed coffee is noticeably cooler than normal — barely warm instead of hot. View ERROR 3 Water Pump Malfunction High The pump makes a strained, loud buzzing noise but no water comes out. View ERROR 5 Grinder Fault Medium The grinder motor may run but beans remain whole in the hopper. View ERROR 6 Temp Sensor Malfunction Medium The machine shows a heating indicator but never finishes preheating and won't brew. View ERROR 7 Grinder Blockage Medium The grinder makes a loud clicking sound or stops abruptly during grinding. View ERROR 8 Brewing Unit Jam High The brewing cycle starts but halts partway through. The machine becomes unresponsive. View FILL BEANS Bean Hopper Empty Low Coffee becomes progressively weaker as the last few beans are ground. View