Bosch Dishwasher Error Code 0

Error code 0 on a Bosch dishwasher indicates that the control board completed its diagnostic test program and found no faults in any of the monitored systems. This code appears at the end of a service technician test cycle, confirming that the machine's sensors, wash pump, drain pump, heating element, water inlet valve, and control circuitry all responded within expected parameters during the test sequence. It is a confirmation state, not a fault condition.

For homeowners, seeing a 0 displayed after running a test cycle is good news. It means the dishwasher ran through its internal checks and everything passed. You may see this code if a technician recently ran diagnostics on your unit, or if you accidentally initiated the test program yourself. The dishwasher is not reporting a problem, it is reporting the absence of one.

No repair action is needed when code 0 is present. If you reached this code while trying to diagnose an actual performance issue such as poor cleaning, standing water, or unusual noise, the problem may be intermittent or related to usage factors like loading, detergent, or water supply rather than a component fault the control board can detect.