Bosch Serie 6 Service Mode [verified]

Do not touch internal oven surfaces during C02–C04; elements become extremely hot. Part 4: Common Error Codes Found in Bosch Serie 6 Service Mode Once you retrieve error codes from service mode, here is what they typically mean:

Press “Menu” + “Back” (left arrow) for 10 seconds, then within 2 seconds press “Start”. Oven Diagnostic Functions | Code | Test | |------|------| | C01 | Oven light and cooling fan | | C02 | Top heating element (lower power) | | C03 | Bottom heating element | | C04 | Circulating fan with ring heater | | C10 | Temperature sensor (PT1000) resistance check | | C20 | Error log (last 10 faults) | | C99 | Factory reset (clears all user data and error memory) | bosch serie 6 service mode

Bosch home appliances—particularly the popular Serie 6 line of dishwashers, washing machines, and ovens—are renowned for their German engineering, energy efficiency, and quiet operation. However, like any sophisticated piece of technology, they can occasionally throw error codes, behave erratically, or require calibration. Do not touch internal oven surfaces during C02–C04;

For official Bosch manuals and spare parts, visit the Bosch Home Appliance support portal. This article is not affiliated with BSH Hausgeräte GmbH. However, like any sophisticated piece of technology, they

| Error | Appliance | Meaning | |-------|-----------|---------| | E:15 | Dishwasher | Water protection system activated – possible leak or float switch stuck | | E:24 | Dishwasher | Drain blockage or faulty drain pump | | E:09 | Dishwasher | Heater relay fault or calcified heating element | | F:18 | Washing Machine | Heating relay stuck – replace control board or heater | | E:30 | Washing Machine | Drain pump filter clogged or pump failed | | F:63 | Washing Machine | Motor tachometer signal missing – hall sensor issue | | C67 | Oven | Cooling fan runs continuously – probe short | | C71 | Oven | Temperature sensor open circuit |

When this happens, professional repair technicians often enter the (often labelled as "Customer Service Mode" or "Diagnostic Mode"). This hidden menu allows you to run diagnostic tests, read fault memory, and test individual components without disassembling the machine.

Turn off. Press and hold “Finish In” and “Start/Pause” simultaneously. While holding, turn the dial to “Off” then to any program. Release buttons. The display shows “d01”. Important Service Mode Tests – Washing Machine | Code | Description | |------|-------------| | d01 | Door lock test (listens for click) | | d04 | Inlet valve test (cold + hot) | | d05 | Drain pump activation | | d06 | Motor rotation (drum will turn slowly – careful) | | d08 | Heating element (test resistance via display) | | d12 | NTC temperature sensor check | | d20 | Read fault code memory |