Bosch Dishwasher Error Code d:16

Code d:16 means the wash pump motor overheated and triggered its internal thermal protection switch, shutting the motor down. The dishwasher stops the cycle to prevent damage to the motor. The cause is typically a binding pump impeller, worn bearings, or a failing motor. Running diagnostic test P:04 is the recommended first step to evaluate the motor's condition.

You should not continue running the dishwasher while this code is active. The thermal protection shut the motor down specifically to prevent damage, and forcing repeated cycles through resets can cause permanent motor failure or, in a worst case, create a heat-related hazard. Diagnose and resolve the underlying cause before resuming normal use.

If the fix is simply removing a foreign object from the pump, the cost is minimal, primarily your time. Replacing the wash pump or motor assembly typically costs between $150 and $350 for parts, with professional labor adding another $100 to $200 depending on your area. A control board replacement, if needed, can run $200 to $400 for the part alone.

If the cause is a foreign object blocking the pump impeller, a DIY repair is very feasible. You can access the pump filter and lower spray arm area to remove debris without specialized tools. If the problem is worn pump bearings or a failing motor, replacement parts are required and the repair becomes more involved, though an experienced DIYer can manage it with care.

A reset may clear the code temporarily, but if the root cause is not addressed, the motor will overheat again and d:16 will return. In some cases the thermal switch needs time to cool before the motor will even attempt to run again. A reset without fixing the binding or overload condition is not a reliable or safe solution.