Bosch TIS30351DE/03 error codes & fixes
Choose an error code below to jump to the exact fix. If you’re not sure, use the model-scoped search.
Try E2, temperature, or won’t start.
Error codes
Pick your code to open the fix page.
Recently updated fixes
Fresh pages first — useful when you’re troubleshooting right now.
Bosch TIS30351DE/03 Error Code RESTART APPLIANCE (LEDS FLASHING)
Bosch TIS30351DE/03 error code RESTART APPLIANCE (LEDS FLASHING) means brewing unit is very heavily soiled or cannot be removed. This guide explains the likely causes, the safest first chec…
Bosch TIS30351DE/03 Error Code RESTART APPLIANCE (LED DOES NOT LIGHT UP)
Bosch TIS30351DE/03 error code RESTART APPLIANCE (LED DOES NOT LIGHT UP) means fault in the appliance. This guide explains the likely causes, the safest first checks, and when support or se…
Bosch TIS30351DE/03 Error Code INCORRECT VOLTAGE
Bosch TIS30351DE/03 error code INCORRECT VOLTAGE means incorrect voltage in the building supply. This guide explains the likely causes, the safest first checks, and when support or service…
Bosch TIS30351DE/03 Error Code EMPTY TRAYS
Bosch TIS30351DE/03 error code EMPTY TRAYS means emptying is not detected when the appliance is off. This guide explains the likely causes, the safest first checks, and when support or serv…
Bosch TIS30351DE/03 Error Code CLEAN/FILL TANK (CALC'NCLEAN AND ) LIGHT UP)
Bosch TIS30351DE/03 error code CLEAN/FILL TANK (CALC'NCLEAN AND ) LIGHT UP) means the descaling process has been interrupted. This guide explains the likely causes, the safest first checks,…
Bosch TIS30351DE/03 Error Code CLEAN BREWING UNIT
Bosch TIS30351DE/03 error code CLEAN BREWING UNIT means brewing unit is soiled. This guide explains the likely causes, the safest first checks, and when support or service is the better nex…
Bosch TIS30351DE/03 Error Code CALC'NCLEAN KEEPS ON APPEARING
Bosch TIS30351DE/03 error code CALC'NCLEAN KEEPS ON APPEARING means water is too hard. This guide explains the likely causes, the safest first checks, and when support or service is the bet…
Bosch TIS30351DE/03 Error Code APPLIANCE TOO COLD
Bosch TIS30351DE/03 error code APPLIANCE TOO COLD means ambient temperature is too cold. This guide explains the likely causes, the safest first checks, and when support or service is the b…
All fixes for this model
One card per code. If a code has multiple variants, the card opens the filtered results list.
Bosch TIS30351DE/03 Error Code RESTART APPLIANCE (LEDS FLASHING)
Bosch TIS30351DE/03 error code RESTART APPLIANCE (LEDS FLASHING) means brewing unit is very heavily soiled or cannot be removed. This guide explains the likely causes, the safest first chec…
Bosch TIS30351DE/03 Error Code RESTART APPLIANCE (LED DOES NOT LIGHT UP)
Bosch TIS30351DE/03 error code RESTART APPLIANCE (LED DOES NOT LIGHT UP) means fault in the appliance. This guide explains the likely causes, the safest first checks, and when support or se…
Bosch TIS30351DE/03 Error Code INCORRECT VOLTAGE
Bosch TIS30351DE/03 error code INCORRECT VOLTAGE means incorrect voltage in the building supply. This guide explains the likely causes, the safest first checks, and when support or service…
Bosch TIS30351DE/03 Error Code EMPTY TRAYS
Bosch TIS30351DE/03 error code EMPTY TRAYS means emptying is not detected when the appliance is off. This guide explains the likely causes, the safest first checks, and when support or serv…
Bosch TIS30351DE/03 Error Code CLEAN/FILL TANK (CALC'NCLEAN AND ) LIGHT UP)
Bosch TIS30351DE/03 error code CLEAN/FILL TANK (CALC'NCLEAN AND ) LIGHT UP) means the descaling process has been interrupted. This guide explains the likely causes, the safest first checks,…
Bosch TIS30351DE/03 Error Code CLEAN BREWING UNIT
Bosch TIS30351DE/03 error code CLEAN BREWING UNIT means brewing unit is soiled. This guide explains the likely causes, the safest first checks, and when support or service is the better nex…
Bosch TIS30351DE/03 Error Code CALC'NCLEAN KEEPS ON APPEARING
Bosch TIS30351DE/03 error code CALC'NCLEAN KEEPS ON APPEARING means water is too hard. This guide explains the likely causes, the safest first checks, and when support or service is the bet…
Bosch TIS30351DE/03 Error Code APPLIANCE TOO COLD
Bosch TIS30351DE/03 error code APPLIANCE TOO COLD means ambient temperature is too cold. This guide explains the likely causes, the safest first checks, and when support or service is the b…
About this model
If your device shows an error code, start with the matching fix page. When a code returns repeatedly, it often points to an underlying cause (temperature, power delivery, sensors, locks, or wear).
Always follow basic safety: unplug before opening anything, and stop if you smell burning or see damage.