Bosch Dishwasher error codes

The self-check found a fault in the water heating circuit. On most Bosch models the heater is built into the circulation pump, which repair references call the heat pump. The dishwasher may finish with poorly cleaned or wet dishes.

A float switch in the pan under the dishwasher detected water, so the AquaStop leak protection shut off the water supply. It means water got where it shouldn't, from a leak or overflow inside the machine.

The filter at the bottom of the dishwasher is clogged, which limits how well water circulates and drains.

The dishwasher isn't draining properly, often because the drain path is blocked. Water may be left standing in the bottom.

The drain pump is blocked, or its cover under the filter is loose or missing.

The main control board found a fault in the circuit that runs the heat pump (the circulation pump with its built-in heater).

The flow meter, which measures incoming water, failed, or there's a problem with the fill system.

Water isn't flowing into the dishwasher correctly.

Too little water is coming in, so the water level stays too low. Bosch says the supply should deliver about 10 liters (2.6 gallons) per minute.

The main wash pump, which also contains the heater on most models, is blocked or isn't turning at the right speed.

The drain pump is blocked, clogged or not working.

The house power reaching the dishwasher is too low for it to run properly.