If your Bosch dishwasher stops mid-cycle, the most likely problem is a bad water inlet valve. When the dishwasher drains and then cannot refill, the cycle stalls because the valve is not opening or the valve is clogged. Next, check the door latch, since a loose or failed latch can make the door switch tell the control board to shut the dishwasher off before the cycle is finished. If your Bosch dishwasher stops during cycle and shows a fault code, use that code to narrow the diagnosis before replacing parts. A failing control board can also cause a Bosch dishwasher to shut off mid-cycle by cutting power to key components. Less often, the issue is the circulation pump or the pump and motor assembly. If the unit fills but you hear only a humming sound, or the wash arms are not getting water pressure, the pump motor or impeller may be failing. RepairClinic.com makes it easier to track down the exact cause. Enter your model number to find the exact Bosch replacement part that fits your dishwasher.
01 - Bosch Dishwasher Water Inlet Valve
The water inlet valve opens to allow water to enter the dishwasher. If the water valve fails, the dishwasher will stop in mid-cycle after the remaining water in the sump area has drained prior to the fill cycle. The water inlet valve coil can be tested for electrical continuity to help determine if the part is faulty. The valve could also be clogged. A clogged valve can not be cleaned and should be replaced.
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The dishwasher door needs to be properly latched for the appliance to work. If the latch is faulty, the door switch could signal the control board to stop the dishwasher in mid-cycle. Inspect the door latch for any damage and replace if necessary.
If the dishwasher stop mid-cycle, a fault code will usually be displayed to help diagnose the issue. Refer to the owner's manual or do an on-line search to find out more information regarding what the fault code means.
Common
04 - Bosch Dishwasher Control Board
A dishwasher's control board provides power to nearly every electrical component in the dishwasher. A faulty board may be unable to supply power to all of the electrical components which can cause the dishwasher to stop mid-cycle.
The circulation pump uses a motor and impeller to force water up through the wash arms. If the circulation pump is defective, the dishes won’t be cleaned properly. If the motor isn’t making any noise or is just making a humming sound after the dishwasher has filled, the motor may be burned out. First, ensure that power is getting to the motor. Second, to ensure that the impeller can turn, check the pump housing for debris. If power is getting to the motor and the pump is clear of debris, the motor might need to be replaced. Be aware that the circulation pump may be challenging to replace, although many do-it-yourselfers ha...ve been successful with the replacement.
The motor drives an impeller to force water up through the wash arms. If the motor is defective, the pump impeller is broken, or some part of the pump is clogged, dishes won’t be cleaned properly. Make sure that power is getting to the circulation pump and motor. If power is getting to the pump and motor assembly but it still won’t run, replace the pump and motor assembly.